
Professor Andrei Lyamin
Professor
School of Engineering (Civil Engineering)
- Email:andrei.lyamin@newcastle.edu.au
- Phone:(02) 4921 7073
Career Summary
Biography
Research Expertise
Played a key role in the formulation and development of powerful new methods for performing numerical stability analysis for geotechnical structures in two and three dimensions. These methods, which are based on finite elements and nonlinear programming, are the first to be able to compute rigorous bounds on the limit load in three dimensions. Moreover, for large two-dimensional problems, they are several orders of magnitude faster than an equivalent linear programming formulation and can be run on a standard desktop PC. Coupled with convenient domain discretization tools and adaptive mesh refinement, the limit analysis procedures can be applied to a wide range of problems in geotechnical engineering, and obviate the need for more approximate techniques such as limit equilibrium. Indeed, they have already been used to study the behaviour of foundations on jointed rock, square and rectangular foundations, stability of layered soil, tunnels, anchors, excavations and pavements under moving loads. My research interests have been recently extended to the fields of non-structured mesh generation and adaptivity, shakedown analysis, elastoplasticity by optimization, specialised non-linear optimisation methods such as second-order cone and semidefinite programming.
Teaching Expertise
Over the last 10 years I've been involved in marking, tutoring and lecturing a number of courses in Civil Engineering. My lecturing experience include: 2009 - GENG1002 Introduction to Engineering Computations, 370 students (1st year), 13 lectures and tutorials. 2005-2008 - CIVL2050 Engineering Computations, 100 students (2nd year), 14 lectures and tutorials. 2006-2007 - CIVL2720 Transportation Engineering, 100 students (2nd year), 28 lectures and tutorials. 2004 - CIVL3830 Stress Analysis, 100 students (3rd year), 28 lectures.
Administrative Expertise
Starting 2009 conduct the duties of a Program Convenor for Civil Engineering and Mining Transfer programs.
Collaborations
Has played a key role in the formulation and development of new methods for performing lower and upper bound limit analysis in two and three dimensions. These methods, which are based on finite elements and nonlinear programming, are the first to be able to compute rigorous bounds on the limit load in three dimensions. Moreover, for large two-dimensional problems, they are several orders of magnitude faster than equivalent linear programming formulations. Recently the upper bound method has been enhanced to deal with discontinuous velocity fields subject to general flow rule conditions and united with lower bound techniques under the static framework. The newly developed limit analysis procedures are applicable to a wide range of problems in geotechnical engineering, and obviate the need for approximate techniques such as limit equilibrium. Indeed, they have already been used to study the behaviour of foundations on jointed rock, square and rectangular foundations, tunnels, anchors and excavations. My research interests have recently been extended to the fields of non-structured mesh generation and adaptivity (completed APD, 2002), shakedown analysis, elastoplasticity by optimization (ARC grant 2006), and specialised non-linear optimisation methods such as second-order cone and semidefinite programming.
Qualifications
- PhD, University of Newcastle
- Bachelor of Science, Moscow Institute of Physics and Technology
Keywords
- Adaptive Mesh Generation
- Engineering Computations
- Finite Elements
- Limit Analysis
- Optimization
- Shakedown Analysis
- Stress Analysis
- Transportation Engineering
Languages
- Russian (Fluent)
Professional Experience
UON Appointment
Title | Organisation / Department |
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Professor | University of Newcastle School of Engineering Australia |
Professor | University of Newcastle School of Engineering Australia |
Academic appointment
Dates | Title | Organisation / Department |
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1/11/2012 - |
Fellow ARC ARC - Discovery - Future Fellowships |
University of Newcastle School of Engineering Australia |
1/1/2001 - 1/12/2002 | Research Fellow | University of Newcastle Engineering & Built Environment Australia |
1/1/2005 - 1/2/2007 | Senior Lecturer | University of Newcastle Engineering & Built Environment Australia |
1/3/2007 - | Associate Professor | University of Newcastle Engineering & Built Environment Australia |
1/1/2002 - 1/12/2005 | Research Academic | University of Newcastle Engineering & Built Environment Australia |
Awards
Recipient
Year | Award |
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2002 |
APD Fellowship ARC |
Research Award
Year | Award |
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2008 |
Excellent Paper Award International Association for Computer Methods and Advances in Geomechanics |
2007 |
Telford Premium Institution of Civil Engineers |
2005 |
Significant Junior/Senior Paper Award International Association for Computer Methods and Advances in Geomechanics |
Invitations
Participant
Year | Title / Rationale |
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2001 |
Limit analysis using nonlinear programming Organisation: 1st MIT Conference on Computational Fluid and Solid Mechanics Description: Keynote paper |
2000 |
Stability of a plane strain circular tunnel in a cohesive-frictional soil Organisation: J.R.Booker Memorial Symposium Description: Invited paper |
2000 |
Lower bound limit analysis using nonlinear programming Organisation: ECCOMAS 2000 Description: Invited paper |
2000 |
Upper bound limit analysis using linear finite elements and nonlinear programming Organisation: 5th International Conference on Computational Structures Technology Description: Invited paper |
Publications
For publications that are currently unpublished or in-press, details are shown in italics.
Chapter (1 outputs)
Year | Citation | Altmetrics | Link | ||
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2014 |
Muñoz JJ, Rabiei N, Lyamin A, Huerta A, 'Computation of bounds for anchor problems in limit analysis and decomposition techniques', Direct Methods for Limit States in Structures and Materials 79-99 (2014) © 2014 Springer Science+Business Media Dordrecht. All rights are reserved. Numerical techniques for the computation of strict bounds in limit analyses have been developed for more... [more] © 2014 Springer Science+Business Media Dordrecht. All rights are reserved. Numerical techniques for the computation of strict bounds in limit analyses have been developed for more than thirty years. The efficiency of these techniques have been substantially improved in the last ten years, and have been successfully applied to academic problems, foundations and excavations. We here extend the theoretical background to problems with anchors, interface conditions, and joints. Those extensions are relevant for the analysis of retaining and anchored walls, which we study in this work. The analysis of three-dimensional domains remains as yet very scarce. From the computational standpoint, the memory requirements and CPU time are exceedingly prohibitive when mesh adaptivity is employed. For this reason, we also present here the application of decomposition techniques to the optimisation problem of limit analysis. We discuss the performance of different methodologies adopted in the literature for general optimisation problems, such as primal and dual decomposition, and suggest some strategies that are suitable for the parallelisation of large three-dimensional problems. The proposed decomposition techniques are tested against representative problems.
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Journal article (88 outputs)
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2021 |
Leng B, Yang H, Hou G, Lyamin A, 'Rock mass trace line identification incorporated with grouping algorithm at tunnel faces', Tunnelling and Underground Space Technology, 110 (2021) © 2021 Elsevier Ltd Geological trace lines including rock joints and fractures are important characteristics of tunnel faces. Fully recording and analyzing this information is ver... [more] © 2021 Elsevier Ltd Geological trace lines including rock joints and fractures are important characteristics of tunnel faces. Fully recording and analyzing this information is very helpful for evaluating the state of the tunnel from engineering geology prospective. Based on the digital images of a tunnel face, the paper studied rock mass trace line extraction and grouping algorithms with the aim of minimizing the degree of manual intervention. Firstly, the characteristics of rock mass edges are analyzed, and then Canny operator is proposed for appraising trace lines of different types of rock masses. The algorithm applies image thinning, edge fitting, splitting, merging and filtering to all detected trace lines. On the basis of the statistical characteristics of the grey values of the pixels on both sides of the trace line in the original image, a one-sided expansion method is developed to dilate the trace line. After filling the expanded connected area, image thinning, polyline fitting, splitting, merging and filtering are performed again to obtain the final trace line of the rock mass exposure. Then, tunnel face characteristic extraction algorithms are presented to calculate rock mass characteristics, and a special clustering technique is developed to automatically group the trace lines. Applying this approach to rock mass images of the tunnel face may eliminate the double boundary lines detected on some edges and it also allows to perform the automatic characteristic extraction and grouping of trace lines, and consequently increase analysis automation of the tunnel face. The experimental results illustrate that the proposed method is effective for analysis and evaluation of the rock mass on the tunnel face.
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2020 |
Chen D, Huang W, Lyamin A, 'Finite particle method for static deformation problems solved using JFNK method', Computers and Geotechnics, 122 (2020) [C1]
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2019 |
Qian ZG, Li AJ, Chen WC, Lyamin AV, Jiang JC, 'An artificial neural network approach to inhomogeneous soil slope stability predictions based on limit analysis methods', Soils and Foundations, 59 556-569 (2019) [C1]
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2019 |
Li AJ, Qian Z, Jiang JC, Lyamin A, 'Seismic Slope Stability Evaluation Considering Rock Mass Disturbance Varying in the Slope', KSCE Journal of Civil Engineering, 23 1043-1054 (2019) [C1]
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2018 |
Krabbenhoft K, Lyamin AV, Vignes C, 'Computational plasticity algorithm for particle dynamics simulations', Computational Particle Mechanics, 5 103-111 (2018) [C1]
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2018 |
Ali A, Lyamin AV, Huang J, Li JH, Cassidy MJ, Sloan SW, 'Probabilistic stability assessment using adaptive limit analysis and random fields', Acta Geotechnica, 12 937-948 (2018) [C1]
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2017 |
Qian ZG, Li AJ, Lyamin AV, Wang CC, 'Parametric studies of disturbed rock slope stability based on finite element limit analysis methods', COMPUTERS AND GEOTECHNICS, 81 155-166 (2017) [C1]
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2017 |
Ali A, Lyamin AV, Huang J, Sloan SW, Cassidy MJ, 'Undrained stability of a single circular tunnel in spatially variable soil subjected to surcharge loading', COMPUTERS AND GEOTECHNICS, 84 16-27 (2017) [C1]
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2017 |
Lim K, Li AJ, Schmid A, Lyamin AV, 'Slope-Stability Assessments Using Finite-Element Limit-Analysis Methods', INTERNATIONAL JOURNAL OF GEOMECHANICS, 17 (2017) [C1]
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2017 |
Lim K, Cassidy MJ, Li AJ, Lyamin AV, 'Mean Parametric Monte Carlo Study of Fill Slopes', INTERNATIONAL JOURNAL OF GEOMECHANICS, 17 (2017) [C1]
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2016 |
Li JH, Cassidy MJ, Tian Y, Huang J, Lyamin AV, Uzielli M, 'Buried footings in random soils: comparison of limit analysis and finite element analysis', Georisk, 10 55-65 (2016) [C1] © 2015 Taylor & Francis. The limit analysis and the finite element method are powerful tools for analysing the bearing capacity of foundations. Previous research mainly focu... [more] © 2015 Taylor & Francis. The limit analysis and the finite element method are powerful tools for analysing the bearing capacity of foundations. Previous research mainly focused on the foundations in uniform soils. In realistic conditions, soil properties are always varying spatially due to complex physical, chemical, and biological process in earth evolution. This paper investigates the bearing capacity and failure mechanism of footings buried at various depths in clays with spatially variable distribution of undrained shear strength using the lower bound limit analysis, the upper bound limit analysis, and the finite element analysis. Results show that the bearing capacity increases with increasing buried depths in spatially random soils, which is the same as in the uniform soils. The bearing capacity factors calculated using the finite element method, the lower bound limit analysis, and the upper bound limit analysis for a footing in spatially varied soils are all smaller than the corresponding values in uniform soils. The majority of the bearing capacity factors obtained from the finite element method is bounded by those obtained from the lower bound and the upper bound limit analysis. The shear planes show a clearly unsymmetrical manner in spatially varied soils using the three methods, which is different from the symmetrical shear plane in uniform soils.
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2016 |
Li AJ, Khoo S, Lyamin AV, Wang Y, 'Rock slope stability analyses using extreme learning neural network and terminal steepest descent algorithm', AUTOMATION IN CONSTRUCTION, 65 42-50 (2016) [C1]
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2016 |
Hjiaj M, Krabbenhøft K, Lyamin AV, 'Direct computation of shakedown loads via incremental elastoplastic analysis', Finite Elements in Analysis and Design, 122 39-48 (2016) [C1] © 2016 Elsevier B.V. The problem of shakedown analysis is considered. The mathematical programming formulations of limit and incremental elastoplastic analysis are first briefly r... [more] © 2016 Elsevier B.V. The problem of shakedown analysis is considered. The mathematical programming formulations of limit and incremental elastoplastic analysis are first briefly reviewed and a convenient standard form for shakedown analysis is then suggested. This standard form can formally be viewed as a problem of limit analysis. In this way, two different solution approaches are applicable: either the problem can be solved directly using general optimization methods or the problem can be converted into an equivalent fictitious incremental elastoplastic problem and solved as such. We further show that this result holds in general for arbitrary convex mathematical programs. Thus, all the methods and techniques developed for elastoplasticity are in principle applicable to general convex programming. For the solution of shakedown problems we employ a version of the well-known implicit solution procedure in combination with a number of equally well-known techniques from general optimization theory. The resulting algorithm enables an efficient and robust treatment of cone-shaped yield constraints of the Drucker¿Prager type.
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2016 |
Lim K, Lyamin AV, Cassidy MJ, Li AJ, 'Three-Dimensional Slope Stability Charts for Frictional Fill Materials Placed on Purely Cohesive Clay', INTERNATIONAL JOURNAL OF GEOMECHANICS, 16 (2016) [C1]
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2015 |
Qian ZG, Li AJ, Merifield RS, Lyamin AV, 'Slope Stability Charts for Two-Layered Purely Cohesive Soils Based on Finite-Element Limit Analysis Methods', INTERNATIONAL JOURNAL OF GEOMECHANICS, 15 (2015) [C1]
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2015 |
Tschuchnigg F, Schweiger HF, Sloan SW, Lyamin AV, Raissakis I, 'Comparison of finite-element limit analysis and strength reduction techniques', Geotechnique, 65 249-257 (2015) [C1] © 2015, Thomas Telford Services Ltd. All rights reserved. In practical geotechnical engineering the factor of safety is still determined by means of simple limit equilibrium analy... [more] © 2015, Thomas Telford Services Ltd. All rights reserved. In practical geotechnical engineering the factor of safety is still determined by means of simple limit equilibrium analysis in many cases. However, because displacement finite-element analysis is routinely applied for assessing displacements and stresses for working load conditions, this technique is increasingly being used to calculate ultimate limit states and, consequently, factors of safety, usually by means of the so-called strength reduction technique, and results which are comparable to those obtained with limit equilibrium methods have been reported in the literature. However, owing to the inherent assumptions of limit equilibrium analyses, they do not always provide unique factors of safety. The purpose of this paper is on the one hand to compare the strength reduction method with rigorous limit analyses which are based on collapse theorems of plasticity, and on the other hand to investigate if a shortcoming of the strength reduction method, namely possible numerical instabilities for non-associated plasticity, can be overcome. Two examples are considered, namely slope stability and tunnel face stability. Finally an important note on the definition of the factor of safety for effective and total stress analysis under undrained conditions is provided.
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2015 |
Krabbenhoft K, Lyamin AV, 'Generalised Tresca criterion for undrained total stress analysis', Geotechnique Letters, 5 313-317 (2015) [C1] © 2016 ICE Publishing: all rights reserved. A new failure criterion, the generalised Tresca criterion, for undrained total stress analysis is presented. The criterion is consisten... [more] © 2016 ICE Publishing: all rights reserved. A new failure criterion, the generalised Tresca criterion, for undrained total stress analysis is presented. The criterion is consistent with an underlying effective stress Mohr-Coulomb model. It involves two parameters: the undrained shear strengths in triaxial compression and extension. As such, the model predicts different strengths in compression and extension without introducing any physical anisotropy due to layering, direction of deposition and so on. The model is applied to a number of boundary value problems, where the effects of an extension/compression shear strength ratio less than unity generally turns out to be relatively moderate.
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2015 |
Krabbenhoft K, Lyamin AV, 'Strength reduction finite-element limit analysis', Geotechnique Letters, 5 250-253 (2015) [C1] © 2016 ICE Publishing: all rights reserved. A procedure for strength reduction analysis using finite-element limit analysis is presented. The scheme is completely general and does... [more] © 2016 ICE Publishing: all rights reserved. A procedure for strength reduction analysis using finite-element limit analysis is presented. The scheme is completely general and does not require decision making regarding the loads needed to drive the system to failure. Rather, the scheme is based on the ability of modern interior-point methods to detect infeasibility in a controlled and reliable manner. The new scheme is illustrated by an example involving a strip footing on top of a slope.
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2015 |
Wilson DW, Abbo AJ, Sloan SW, Lyamin AV, 'Undrained stability of dual square tunnels', Acta Geotechnica, 10 665-682 (2015) [C1] © 2015, Springer-Verlag Berlin Heidelberg. In this paper, finite element limit analysis (FELA) and semi-analytical rigid block techniques are used to investigate the influence of ... [more] © 2015, Springer-Verlag Berlin Heidelberg. In this paper, finite element limit analysis (FELA) and semi-analytical rigid block techniques are used to investigate the influence of tunnel spacing on the undrained stability of two unlined square tunnels constructed side by side. The tunnels, which are assumed to be straight and infinitely long, are modelled under conditions of plane strain. Upper and lower bounds on the stability of the tunnels are obtained using FELA; the numerical formulation of which is based upon the bounds theorems of classical plasticity. These bounds, which bracket the true collapse load from above and below, are found to be in good agreement with one another. Rigid block methods also provided an upper bound estimate on tunnel stability which was generally higher than, but still in good agreement with, the FELA upper bound. Failure mechanisms associated with the collapse of the dual tunnels were investigated, and for deeper tunnels, it was found that mechanisms extend much deeper below the tunnels than the collapse mechanisms associated with a single tunnel. Results from this study are summarised in dimensionless stability charts for use by practitioners.
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2015 |
Kardani O, Lyamin AV, Krabbenhøft K, 'Parallel preconditioned conjugate gradient method for large sparse and highly ill-conditioned systems arising in computational geomechanics', International Journal of Computational Science and Engineering, 11 409-419 (2015) [C1] Copyright © 2015 Inderscience Enterprises Ltd. The efficiency of parallel preconditioned conjugate gradient (PCG) algorithm for solving large sparse linear systems arising from ap... [more] Copyright © 2015 Inderscience Enterprises Ltd. The efficiency of parallel preconditioned conjugate gradient (PCG) algorithm for solving large sparse linear systems arising from application of interior point methods to conic optimisation problems in the context of nonlinear finite element limit analysis (FELA) for computational geomechanics is studied. For large 3D problems, the use of direct solvers in general becomes prohibitively expensive owing to exponentially growing memory requirements and computational time. And the so-called saddle-point systems resulting from use of optimisation framework is not an exemption. On the other hand, although preconditioned iterative methods have moderate storage requirements and therefore can be applied to much larger problems than direct methods, they usually exhibit high number of iterations to reach convergence. In the present paper, we show that this problem can be effectively tackled using efficient variants of sparse approximate inverse preconditioners along with an elaborate parallel implementation on multicore CPUs and significant improvements can be achieved by parallel implementation on graphic processing unit (GPU). Furthermore, the efficiency of our proposed implementation is verified by the presented numerical results.
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2015 |
Lim K, Li AJ, Lyamin AV, 'Three-dimensional slope stability assessment of two-layered undrained clay', Computers and Geotechnics, 70 1-17 (2015) [C1] © 2015 Elsevier Ltd. This paper uses the finite element upper and lower bound limit analysis methods to investigate the three-dimensional (3D) slope stability of two-layered undra... [more] © 2015 Elsevier Ltd. This paper uses the finite element upper and lower bound limit analysis methods to investigate the three-dimensional (3D) slope stability of two-layered undrained clay slopes. The solutions obtained from the slope stability analyses are bracketed to within ±10% or better. For comparison purposes, results from two-dimensional (2D) analyses based on the numerical limit analysis methods and the conventional limit equilibrium method (LEM) are also discussed. This study shows that 3D boundary of a slope can have significant effects on the slope stability. In addition, the results are presented in the form of stability charts which can be convenient tools for practicing engineers.
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2015 |
Bouassida M, Jellali B, Lyamin A, 'Ultimate Bearing Capacity of a Strip Footing on Ground Reinforced by a Trench', INTERNATIONAL JOURNAL OF GEOMECHANICS, 15 (2015) [C1]
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2014 |
Ali A, Huang J, Lyamin AV, Sloan SW, Griffiths DV, Cassidy MJ, Li JH, 'Simplified quantitative risk assessment of rainfall-induced landslides modelled by infinite slopes', Engineering Geology, 179 102-116 (2014) [C1] Rainfall induced landslides vary in depth and the deeper the landslide, the greater the damage it causes. This paper investigates, quantitatively, the risk of rainfall induced lan... [more] Rainfall induced landslides vary in depth and the deeper the landslide, the greater the damage it causes. This paper investigates, quantitatively, the risk of rainfall induced landslides by assessing the consequence of each failure. The influence of the spatial variability of the saturated hydraulic conductivity and the nature of triggering mechanisms on the risk of rainfall-induced landslides (for an infinite slope) are studied. It is shown that a critical spatial correlation length exists at which the risk is a maximum and the risk is higher when the failure occurs due to a generation of positive pore water pressure. © 2014 Elsevier B.V.
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2014 |
Ali A, Huang J, Lyamin AV, Sloan SW, Cassidy MJ, 'Boundary effects of rainfall-induced landslides', Computers and Geotechnics, 61 341-354 (2014) [C1] In the study of landslides, it is generally assumed that an impermeable boundary exists at a certain depth and failure occurs at this boundary. In reality this is not always the c... [more] In the study of landslides, it is generally assumed that an impermeable boundary exists at a certain depth and failure occurs at this boundary. In reality this is not always the case and failures can occur at any depth. This paper aims to study the effect of boundary conditions on landslides, using a series of seepage and stability analyses performed over a range of rainfall intensities, and for different failure mechanisms, by studying the failure time and depths corresponding to fully drained, partially drained, and impermeable boundaries. It is shown that these conditions can significantly affect the occurrence and depth of rainfall-induced landslides. © 2014 Elsevier Ltd.
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2014 |
Karim MR, Krabbenhoft K, Lyamin AV, 'Permeability determination of porous media using large-scale finite elements and iterative solver', International Journal for Numerical and Analytical Methods in Geomechanics, 38 991-1012 (2014) [C1] The problem of finite element simulation of incompressible fluid flow in porous medium is considered. The porous medium is characterized by the X-ray microtomography technique in ... [more] The problem of finite element simulation of incompressible fluid flow in porous medium is considered. The porous medium is characterized by the X-ray microtomography technique in three dimensions. The finite calculus-based stabilization technique is reviewed to implement the equal order finite element interpolation functions for both velocity and pressure. A noble preconditioner, the nodal block diagonal preconditioner, is considered whose performance is thoroughly investigated. Combining this preconditioner with a standard iterative solver during the computational homogenization procedure, it is possible to carry out the large-scale fluid flow simulation for estimating permeability of the porous medium with reasonable accuracy and reliability. © 2013 John Wiley & Sons, Ltd.
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2014 |
Yamamoto K, Lyamin AV, Wilson DW, Sloan SW, Abbo AJ, 'Stability of dual square tunnels in cohesive-frictional soil subjected to surcharge loading', Canadian Geotechnical Journal, 51 829-843 (2014) [C1]
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2014 |
Yu SB, Merifield RS, Lyamin AV, Fu XD, 'Kinematic limit analysis of pullout capacity for plate anchors in sandy slopes', Structural Engineering and Mechanics, 51 565-579 (2014) [C1]
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2014 |
Wilson DW, Abbo AJ, Sloan SW, Lyamin AV, 'Undrained stability of dual circular tunnels', International Journal of Geomechanics, 14 69-79 (2014) [C1] In this paper, numerical limit analysis and semianalytical rigid block techniques are used to investigate the effect of the tunnel spacing on the stability of two circular tunnels... [more] In this paper, numerical limit analysis and semianalytical rigid block techniques are used to investigate the effect of the tunnel spacing on the stability of two circular tunnels excavated side by side. The tunnels are modeled under plane-strain conditions, which implies that they are assumed to be infinitely long. Bounds on the stability of the tunnels are obtained using finite-element limit analysis, the numerical formulation of which is based on the upper and lower bounds theorems of classical plasticity. Solutions are obtained using advanced conic programming schemes to solve the resulting optimization problems, and upper and lower bound estimates on the stability of the tunnels are obtained for a range of geometries. These bounds, which bracket the true collapse load from above and below, are found to differ by at most 5% for the cases where the solution does not approach zero. Results from this study are summarized in stability charts for use by practitioners. © 2014 American Society of Civil Engineers.
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2014 |
Li AJ, Merifield RS, Lin HD, Lyamin AV, 'Trench stability under bentonite pressure in purely cohesive clay', International Journal of Geomechanics, 14 151-157 (2014) [C1] Trench stability is a conventional geotechnical problem; however, current evaluations are often based entirely on empiricism. This paper uses numerical finite-element upper and lo... [more] Trench stability is a conventional geotechnical problem; however, current evaluations are often based entirely on empiricism. This paper uses numerical finite-element upper and lower bound limit analysis to produce stability charts for two-dimensional and three-dimensional homogeneous and inhomogeneous undrained diaphragm wall trenches. Using the limit theorems cannot only provide a simple and useful way of analyzing the stability of the trench, but also avoid the shortcomings and arbitrary assumptions underpinning the limit equilibrium method. By considering the effects from the bentonite slurry pressures, the collapse load in this study has been bracketed to within ±8.5 or better by the numerical upper and lower bound limit analyses. The chart solutions can be used to predict either the critical depth or the safety factor of the trench and provide a convenient tool for preliminary designs by practicing engineers. © 2014 American Society of Civil Engineers.
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2014 |
Kardani O, Lyamin A, Krabbenhøft K, 'Application of a GPU-accelerated hybrid preconditioned conjugate gradient approach for large 3D problems in computational geomechanics', Computers and Mathematics with Applications, (2014) [C1] This paper presents a hybrid preconditioning technique for Conjugate Gradient method and discusses its parallel implementation on Graphic Processing Unit (GPU) for solving large s... [more] This paper presents a hybrid preconditioning technique for Conjugate Gradient method and discusses its parallel implementation on Graphic Processing Unit (GPU) for solving large sparse linear systems arising from application of interior point methods to conic optimization problems in the context of nonlinear Finite Element Limit Analysis (FELA) for computational Geomechanics. For large 3D problems, the use of direct solvers in general becomes prohibitively expensive due to exponentially growing memory requirements and computational time. Besides, the so-called saddle-point systems resulting from use of optimization framework is not an exemption. On the other hand, although preconditioned iterative methods have moderate storage requirements and therefore can be applied to much larger problems than direct methods, they usually exhibit high number of iterations to reach convergence. In present paper, we show that this problem can be effectively tackled using the proposed hybrid preconditioner along with an elaborate implementation on GPU. Furthermore, numerical results verify the robustness and efficiency of the proposed technique.
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2013 |
Huang J, Krabbenhoft K, Lyarnin AV, 'Statistical homogenization of elastic properties of cement paste based on X-ray microtomography images', INTERNATIONAL JOURNAL OF SOLIDS AND STRUCTURES, 50 699-709 (2013) [C1]
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2013 |
Zhang X, Krabbenhoft K, Pedroso DM, Lyamin AV, Sheng D, da Silva MV, Wang D, 'Particle finite element analysis of large deformation and granular flow problems', Computers and Geotechnics, 54 133-142 (2013) [C1] A version of the Particle Finite Element Method applicable to geomechanics applications is presented. A simple rigid-plastic material model is adopted and the governing equations ... [more] A version of the Particle Finite Element Method applicable to geomechanics applications is presented. A simple rigid-plastic material model is adopted and the governing equations are cast in terms of a variational principle which facilitates a straightforward solution via mathematical programming techniques. In addition, frictional contact between rigid and deformable solids is accounted for using an approach previously developed for discrete element simulations. The capabilities of the scheme is demonstrated on a range of quasi-static and dynamic problems involving very large deformations. © 2013 Elsevier Ltd.
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2013 |
Georgiadis K, Sloan SW, Lyamin AV, 'Ultimate lateral pressure of two side-by-side piles in clay', GEOTECHNIQUE, 63 733-745 (2013) [C1]
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2013 |
Georgiadis K, Sloan SW, Lyamin AV, 'Effect of loading direction on the ultimate lateral soil pressure of two piles in clay', GEOTECHNIQUE, 63 1170-1175 (2013) [C1]
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2013 |
Wilson DW, Abbo AJ, Sloan SW, Lyamin AV, 'Undrained stability of a square tunnel where the shear strength increases linearly with depth', COMPUTERS AND GEOTECHNICS, 49 314-325 (2013) [C1]
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2013 |
Yamamoto K, Lyamin AV, Wilson DW, Sloan SW, Abbo AJ, 'Stability of dual circular tunnels in cohesive-frictional soil subjected to surcharge loading', COMPUTERS AND GEOTECHNICS, 50 41-54 (2013) [C1]
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2013 |
Abbo AJ, Wilson DW, Sloan SW, Lyamin AV, 'Undrained stability of wide rectangular tunnels', COMPUTERS AND GEOTECHNICS, 53 46-59 (2013) [C1]
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2013 |
Huang J, Lyamin AV, Griffiths DV, Krabbenhoft K, Sloan SW, 'Quantitative risk assessment of landslide by limit analysis and random fields', COMPUTERS AND GEOTECHNICS, 53 60-67 (2013) [C1]
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2013 |
Georgiadis K, Sloan SW, Lyamin AV, 'Undrained limiting lateral soil pressure on a row of piles', Computers and Geotechnics, 54 175-184 (2013) [C1] The displacement finite element, lower and upper bound finite element limit analysis and analytical upper bound plasticity methods are employed to investigate the undrained limiti... [more] The displacement finite element, lower and upper bound finite element limit analysis and analytical upper bound plasticity methods are employed to investigate the undrained limiting lateral resistance of piles in a pile row. Numerical analyses and analytical calculations are presented for various pile spacings and pile-soil adhesion factors. The numerical results are shown to be in excellent agreement with each other and also with the theoretical upper bounds produced by the analytical upper bound calculations. Based on the numerical and analytical results, an empirical equation is proposed for the calculation of the ultimate undrained lateral bearing capacity factor. This equation is subsequently used to calculate p-multipliers applicable to the lower part of piles in pile rows, which are compared to multipliers available in the literature (that are constant with depth). The comparison shows significant differences, indicating that the amount of reduction in lateral resistance due to group effects is not constant with depth as routinely assumed in practice. © 2013 Elsevier Ltd.
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2013 |
Muñoz JJ, Lyamin AV, Huerta A, 'Stability of anchored sheet wall in cohesive-frictional soils by FE limit analysis', International Journal for Numerical and Analytical Methods in Geomechanics, 37 1213-1230 (2013) [C1] SUMMARY: This study extends the limit analysis techniques used for the computation of strict bounds of the load factors in solids to stability problems with interfaces, anchors an... [more] SUMMARY: This study extends the limit analysis techniques used for the computation of strict bounds of the load factors in solids to stability problems with interfaces, anchors and joints. The cases considered include the pull-out capacity of multi-belled anchors and the stability of retaining walls for multiple conditions at the anchor/soil and wall/soil interfaces. Three types of wall supports are examined: free standing wall, simply supported wall and anchored wall. The results obtained are compared against available experimental and numerical data. The conclusion drawn confirms the validity of numerical limit analysis for the computation of accurate bounds on limit loads and capturing failure modes of structures with multiple inclusions of complex interfaces and support conditions. © 2012 John Wiley & Sons, Ltd.
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2013 |
Kardani O, Lyamin AV, KrabbenhØft K, 'A comparative study of preconditioning techniques for large sparse systems arising in finite element limit analysis', IAENG International Journal of Applied Mathematics, 43 195-203 (2013) [C1] The efficiency of several preconditioned Conjugate Gradient (PCG) schemes for solving of large sparse linear systems arising from application of interior point methods to nonlinea... [more] The efficiency of several preconditioned Conjugate Gradient (PCG) schemes for solving of large sparse linear systems arising from application of interior point methods to nonlinear Finite Element Limit Analysis (FELA) is studied. Direct solvers fail to solve these linear systems in large sizes, such as large 2D and 3D problems, due to their high storage and computational cost. This motivates using iterative methods. However, iterative solvers are not efficient for difficult problems without preconditioning techniques. In this paper, the effect of various preconditioning techniques on the convergence behavior of the preconditioned Conjugate Gradient (PCG) is investigated through a detailed comparative study. Furthermore, numerical results of applying PCG to several sample systems are presented and discussed thoroughly in a parametric study. Our results suggest that while incomplete Cholesky preconditioners are by far the most efficient techniques for sequential computations, significant gains may result from use of sparse approximate inverse methods in parallel environment in this field.
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2012 |
Krabbenhoft K, Karim MR, Lyamin AV, Sloan SW, 'Associated computational plasticity schemes for nonassociated frictional materials', International Journal for Numerical Methods in Engineering, 90 1089-1117 (2012) [C1]
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2012 |
Krabbenhoft K, Lyamin AV, 'Computational Cam clay plasticity using second-order cone programming', Computer Methods in Applied Mechanics and Engineering, 209-212 239-249 (2012) [C1]
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2012 |
Li AJ, Cassidy MJ, Wang Y, Merifield RS, Lyamin AV, 'Parametric Monte Carlo studies of rock slopes based on the Hoek-Brown failure criterion', Computers and Geotechnics, 45 11-18 (2012) [C1]
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2012 |
Krabbenhoft K, Lyamin AV, Huang J, Vicente Da Silva MJ, 'Granular contact dynamics using mathematical programming methods', Computers and Geotechnics, 43 165-176 (2012) [C1]
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2012 |
Krabbenhoft K, Huang J, Vicente Da Silva MJ, Lyamin AV, 'Granular contact dynamics with particle elasticity', Granular Matter, 14 607-613 (2012) [C1]
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2011 |
Shiau JS, Merifield RS, Lyamin AV, Sloan SW, 'Undrained Stability of Footings on Slopes', International Journal of Geomechanics, 11 381-390 (2011) [C1]
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2011 |
Wilson DW, Abbo AJ, Sloan SW, Lyamin AV, 'Undrained stability of a circular tunnel where the shear strength increases linearly with depth', Canadian Geotechnical Journal, 48 1328-1342 (2011) [C1]
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2011 |
Yamamoto K, Lyamin AV, Wilson DW, Sloan SW, Abbo AJ, 'Stability of a single tunnel in cohesive-frictional soil subjected to surcharge loading', Canadian Geotechnical Journal, 48 1841-1854 (2011) [C1]
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2011 |
Abbo AJ, Lyamin AV, Sloan SW, Hambleton JP, 'A C2 continuous approximation to the Mohr-Coulomb yield surface', International Journal of Solids and Structures, 48 3001-3010 (2011) [C1]
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2011 |
Yamamoto K, Lyamin AV, Wilson DW, Sloan SW, Abbo AJ, 'Stability of a circular tunnel in cohesive-frictional soil subjected to surcharge loading', Computers and Geotechnics, 38 504-514 (2011) [C1]
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2011 |
Li AJ, Merifield RS, Lyamin AV, 'Effect of rock mass disturbance on the stability of rock slopes using the Hoek-Brown failure criterion', Computers and Geotechnics, 38 546-558 (2011) [C1]
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2010 |
Li AJ, Merifield RS, Lyamin AV, 'Three-dimensional stability charts for slopes based on limit analysis methods', Canadian Geotechnical Journal, 47 1316-1334 (2010) [C1]
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2009 |
Yamamoto K, Lyamin AV, Abbo AJ, Sloan SW, Hira M, 'Bearing capacity and failure mechanism of different types of foundations on sand', Soils and Foundations, 49 305-314 (2009) [C1]
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2009 |
Li AJ, Lyamin AV, Merifield RS, 'Seismic rock slope stability charts based on limit analysis methods', Computers and Geotechnics, 36 135-148 (2009) [C1]
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2009 |
Kuo YL, Jaksa MB, Lyamin AV, Kaggwa WS, 'ANN-based model for predicting the bearing capacity of strip footing on multi-layered cohesive soil', Computers and Geotechnics, 36 503-516 (2009) [C1]
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2009 |
Li AJ, Merifield RS, Lyamin AV, 'Limit analysis solutions for three dimensional undrained slopes', Computers and Geotechnics, 36 1330-1351 (2009) [C1]
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2009 |
Al-Tarawneh KK, Buzzi OP, Krabbenhoft K, Lyamin AV, Sloan SW, 'An indirect approach for correlation of permeability and diffusion coefficients', Diffusion and Defect Data: Pt A. Defect and Diffusion Forum, 283-286 504-514 (2009) [C1]
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2009 |
Al-Tarawneh KK, Buzzi OP, Krabbenhoft K, Lyamin AV, 'Discussion of the Paper 'Experimental Investigation into Concentration-Dependent Chloride Diffusivity in Glass Beads and Fine Sand' by K. Prabhakaran Nair, A. Praveen, and S. Chandrakaran', Journal of Porous Media, 12 289-291 (2009) [C3]
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2008 |
Krabbenhoft K, Lyamin AV, Sloan SW, 'Three-dimensional Mohr-Coulomb limit analysis using semidefinite programming', Communications in Numerical Methods in Engineering, 24 1107-1119 (2008) [C1]
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2008 |
Li AJ, Merifield RS, Lyamin AV, 'Stability charts for rock slopes based on the Hoek-Brown failure criterion', International Journal of Rock Mechanics and Mining Sciences, 45 689-700 (2008) [C1]
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2008 |
Zhao J, Sloan SW, Lyamin AV, Krabbenhoft K, 'Bounds for shakedown of cohesive-frictional materials under moving surface loads', International Journal of Solids and Structures, 45 3290-3312 (2008) [C1]
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2008 |
Shiau JS, Augarde CE, Lyamin AV, Sloan SW, 'Finite element limit analysis of passive earth resistance in cohesionless soils', Soils and Foundations, 48 843-850 (2008) [C1]
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2007 |
Lyamin AV, Salgado R, Sloan SW, 'Two- and three-dimensional bearing capacity of footings in sand', Geotechnique, 57 647-662 (2007) [C1]
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2007 |
Krabbenhoft K, Lyamin AV, Sloan SW, 'Formulation and solution of some plasticity problems as conic programs', International Journal of Solids and Structures, 44 1533-1549 (2007) [C1]
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2007 |
Krabbenhoft K, Lyamin AV, Sloan SW, 'Shakedown of a cohesive-frictional half-space subjected to rolling and sliding contact', International Journal of Solids and Structures, 44 3998-4008 (2007) [C1]
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2007 |
Krabbenhoft K, Lyamin AV, Sloan SW, Wriggers P, 'An interior-point algorithm for elastoplasticity', International Journal for Numerical Methods in Engineering, 69 592-626 (2007) [C1]
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2007 |
Krabbenhoft K, Lyamin AV, Sloan SW, 'Bounds to shakedown loads for a class of deviatoric plasticity models', Computational Mechanics, 39 879-888 (2007) [C1]
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2006 |
Merifield RS, Lyamin AV, Sloan SW, 'Limit analysis solutions for the bearing capacity of rock masses using the generalised Hoek-Brown criterion', International Journal of Rock Mechanics and Mining Sciences, 43 920-937 (2006) [C1]
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2006 |
Merifield RS, Lyamin AV, Sloan SW, 'Three-dimensional lower-bound solutions for the stability of plate anchors in sand', Geotechnique, 56 123-132 (2006) [C1]
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2005 |
Lyamin AV, Sloan SW, Krabbenhoft K, Hjiaj M, 'Lower bound limit analysis with adaptive remeshing', International Journal for Numerical Methods in Engineering, 63 1961-1974 (2005) [C1]
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2005 |
Krabbenhoft K, Lyamin AV, Hjiaj M, Sloan SW, 'A new discontinuous upper bound limit analysis formulation', International Journal for Numerical Methods in Engineering, 63 1069-1088 (2005) [C1]
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2005 |
Merifield RS, Lyamin AV, Sloan SW, 'Stability of inclined strip anchors in purely cohesive soil', Journal of Geotechnical and Geoenvironmental Engineering, 131 792-799 (2005) [C1]
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2005 |
Hjiaj M, Lyamin AV, Sloan SW, 'Numerical limit analysis solutions for the bearing capacity factor N-gamma', International Journal of Solids and Structures, 42 1681-1704 (2005) [C1]
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2004 |
Salgado R, Lyamin AV, Sloan SW, Yu HS, 'Two- And Three-Dimensional Bearing Capacity Of Foundations In Clay', Geotechnique, Vol. 54 297-306 (2004) [C1]
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2004 |
Hjiaj M, Lyamin AV, Sloan SW, 'Bearing Capacity Of A Cohesive-Frictional Soil Under Non-Eccentric Inclined Loading', Computers and Geotechnics, Vol. 31 491-516 (2004) [C1]
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2003 |
Shiau S-H, Lyamin AV, Sloan SW, 'Bearing Capacity Of A Sand Layer On Clay By Finite Element Limit Analysis', Canadian Geotechnical Journal, Vol. 40 900-915 (2003) [C1]
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2003 |
Augarde CE, Lyamin AV, Sloan SW, 'Stability Of An Undrained Plane Strain Heading Revisted', Computers And Geotechnics, Vol. 30 419-430 (2003) [C1]
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2003 |
Lyamin AV, Sloan SW, 'Mesh Generation For Lower Bound Limit Analysis', Advances In Engineering Software, Vol. 34 321-338 (2003) [C1]
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2003 |
Merifield RS, Lyamin AV, Sloan SW, Yu H-S, 'Three-Dimensional Lower Bound Solutions For Stability Of Plate Anchors In Clay', Journal Of Geotechnical And Geoenvironmental Engineering, 129 243-253 (2003) [C1]
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2003 |
Augarde CE, Lyamin AV, Sloan SW, 'Prediction Of Undrained Sinkhole Collapse', Journal Of Geotechnical And Geoenvironmental Engineering, Vol. 129 197-205 (2003) [C1]
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2002 |
Lyamin AV, Sloan SW, 'Lower Bound Limit Analysis Using Non-Linear Programming', International Journal For Numerical Methods In Engineering, Vol. 55 573-611 (2002) [C1]
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2002 |
Lyamin AV, Sloan SW, 'Upper Bound Limit Analysis Using Linear Finite Elements And Non-Linear Programming', International Journal For Numerical And Analytical Methods In Geomechanics, Vol. 26 181-216 (2002) [C1]
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1998 | Lyamin AV, Yu H-S, Sloan SW, Hossain MZ, 'Lower Bound Limit Analysis For Jointed Rocks Using the Hoek-Brown Yield Criterion', Australian Geomechanics, No. 33, Part 1 46-62 (1998) [C1] | ||||||||||
Show 85 more journal articles |
Conference (81 outputs)
Year | Citation | Altmetrics | Link | ||||||||
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2017 |
Ali A, Lyamin AV, Huang J, Sloan SW, Cassidy MJ, 'Undrained Stability of an Unlined Square Tunnel in Spatially Random Soil', GEO-RISK 2017: IMPACT OF SPATIAL VARIABILITY, PROBABILISTIC SITE CHARACTERIZATION, AND GEOHAZARDS, Denver, CO (2017) [E1]
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2016 |
Ali A, Lyamin AV, Huang J, Sloan SW, Cassidy MJ, 'Effect of Spatial Correlation Length on the Bearing Capacity of an Eccentrically Loaded Strip Footing', Proceedings of the 6th Asian-Pacific Symposium on Structural Reliability and its Applications (APSSRA'6), Shanghai, China (2016) [E1]
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2015 |
Li JH, Cassidy MJ, Tian Y, Huang J, Lyamin AV, Uzielli M, 'Comparative study of bearing capacity of buried footings using random limit analysis and random finite element method', Computer Methods and Recent Advances in Geomechanics - Proceedings of the 14th Int. Conference of International Association for Computer Methods and Recent Advances in Geomechanics, IACMAG 2014 (2015) [E1] Bearing capacity and failure mechanism of a buried footing in uniformsoils have been simulated using limit analysis and finite element analysis in the past decades. In realistic c... [more] Bearing capacity and failure mechanism of a buried footing in uniformsoils have been simulated using limit analysis and finite element analysis in the past decades. In realistic conditions, soil properties always vary spatially. This dramatically affects the failure mechanism of a footing and, in turn, its bearing capacity. This paper illustrates an investigation into the failure mechanism and bearing capacity of a vertically and centrally loaded footing embedded in spatially variable clayey soils using random lower bound limit analysis, random upper bound limit analysis and random finite element analysis. The footing was embedded to 4 times its width. Monte Carlo simulation was performed for 400 realizations of random fields of undrained shear strength. The majority of the bearing capacity factors obtained from the finite element method is bounded by those obtained from the lower bound limit analysis and the upper bound limit analysis, but more close to the upper bound results. A full-flow failure mechanism is observed for the deeply embedded footing in spatially variable soil. The shear path of the footing shows an unsymmetrical pattern, which results from the spatially variable and unsymmetrical random field of soil shear strength. © 2015 Taylor & Francis Group, London.
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2015 |
Huang J, Ali A, Lyamin AV, Sloan SW, Griffiths DV, Cassidy MJ, Li J, 'The influence of spatial variability of soil permeability on the risk of rainfall induced landslides', Computer Methods and Recent Advances in Geomechanics - Proceedings of the 14th Int. Conference of International Association for Computer Methods and Recent Advances in Geomechanics, IACMAG 2014 (2015) [E1] Rainfall induced landslides can vary in depth and deeper the landslide, greater is the damage it causes. This paper investigates, quantitatively, the risk of rainfall induced land... [more] Rainfall induced landslides can vary in depth and deeper the landslide, greater is the damage it causes. This paper investigates, quantitatively, the risk of rainfall induced landslides by assessing the consequence of each failure. The influence of the spatial variability of the saturated hydraulic conductivity on the risk of landslides is studied. It is shown that a critical spatial correlation length exists at which the risk is a maximum. © 2015 Taylor & Francis Group, London.
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2015 |
Lim K, Li A, Lyamin A, Cassidy M, 'Slope stability analysis for fill slopes using finite element limit analysis', Geotechnical Engineering for Infrastructure and Development - Proceedings of the XVI European Conference on Soil Mechanics and Geotechnical Engineering, ECSMGE 2015 (2015) [E1] © The authors and ICE Publishing: All rights reserved, 2015. This paper investigates the stability of fill slopes often found in embankment cases where frictional fill materials a... [more] © The authors and ICE Publishing: All rights reserved, 2015. This paper investigates the stability of fill slopes often found in embankment cases where frictional fill materials are placed on purely cohesive undrained clay with increasing strength. By using finite element upper and lower bound limit analysis for this investigation, the limit load can be truly bounded. It is known that two-dimensional analysis yields a more conservative result due to plain strain condition when compared to three-dimensional analysis. Therefore, this paper will focus on three-dimensional (3D) slope stability analysis and for comparison purposes two-dimensional analysis results will be employed. In fact, the final results are presented in the form of comprehensive chart solutions for the convenience of practicing engineers during preliminary slope design. The failure mechanism will also be discussed in order to further illustrate the situation during failure. It should be highlighted that the failure mechanisms are obtained through the numerical method itself and no prior assumptions are required, therefore, are more realistic and able to provide a better understanding for the slope failure surfaces.
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2015 |
Qian Z, Li AJ, Lyamin AV, Wang JP, 'Investigation of seismic effects on disturbed rock slope stability assessments', 13th ISRM International Congress of Rock Mechanics (2015) © 2015 by the Canadian Institute of Mining, Metallurgy & Petroleum and ISRM. For general stability analysis of rock slopes, rock mass strength and rock mass disturbance are ... [more] © 2015 by the Canadian Institute of Mining, Metallurgy & Petroleum and ISRM. For general stability analysis of rock slopes, rock mass strength and rock mass disturbance are definitely should be considered. In addition, the impact of earthquakes must be taken into account. In fact, the rock mass strength is very difficult to be assessed which causes the difficulty of analysing rock slope stability. Therefore, an empirical failure criterion, the Hoek-Brown failure criterion, has been proposed. It is one of the most widely accepted approaches to estimate rock mass strength. The rock mass disturbance is important and was found having significant influence on evaluating rock slope stability, especially for rock slope with poor quality rock mass. In the Hoek-Brown failure criterion, the disturbance factor can represent the level of the rock mass disturbance which would provide a reasonable basis for estimating rock mass strength. This research will not only discuss the slope factor of safety, but also consider the influence of the seismic force on rock slope stability assessment using pseudo-static method. In practice, only horizontal seismic coefficient is used. Various magnitudes of the disturbance factor and recommended blasting damage zone thickness are also taken into account. The blasting damage zone thickness considered ranges from 0.5 to 2.5 times of slope height. The research results have potential to be extended and then sets of comprehensive stability charts can be provided for the rock slope stability evaluations. They will be convenient tools for practising engineers. In this study, finite element upper bound and lower bound limit analysis methods are employed. Their applicability has been investigated in some previous studies. The differences between upper bound and lower bound solutions are less than ±10% which would provide reasonable and acceptable range for rock slope stability safety factor estimation. |
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2014 |
Li AJ, Khoo SY, Wang Y, Lyamin AV, 'Application of neural network to rock slope stability assessments', Numerical Methods in Geotechnical Engineering, Delft, The Netherlands (2014) [E1]
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2014 |
Kardani O, Krabbenhøft K, Lyamin AV, 'Application of adaptive dynamic relaxation to highly nonlinear geotechnical problems', 11th World Congress on Computational Mechanics, WCCM 2014, 5th European Conference on Computational Mechanics, ECCM 2014 and 6th European Conference on Computational Fluid Dynamics, ECFD 2014, Barcelona (2014) [E2]
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2014 |
Lim K, Li AJ, Lyamin A, 'Slope stability analysis for filled slopes using finite element limit analysis method', Geotechnical Special Publication (2014) [E1] This paper uses the finite element upper and lower bound limit analysis to assess the stability of slopes mostly found in embankment cases where frictional materials are filled on... [more] This paper uses the finite element upper and lower bound limit analysis to assess the stability of slopes mostly found in embankment cases where frictional materials are filled on purely cohesive undrained clay. For comparison purposes, the commonly used stability assessment method, limit equilibrium method (LEM) is also employed. The final results for both methods are then presented in the form of comprehensive chart solutions for the convenience of practicing engineers during preliminary slope designs. The failure mechanism will also be discussed in this paper. Ultimately, it should be noted that finite element limit analysis method holds the upper hand as its prior assumptions are not required. Thus, the obtained failure mechanism from the slope stability analysis will be more realistic. Hence, it will provide a better understanding for the slope failure surface. Therefore, engineers should design more carefully when the LEM is applied to the slopes with frictional materials filled on purely cohesive undrained clay. © 2014 American Society of Civil Engineers.
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2014 |
Huang J, Griffiths DV, Lyamin AV, Krabbenhoft K, Sloan SW, 'Discretization errors of random fields in finite element analysis', Applied Mechanics and Materials (2014) [E1] The mechanical properties of natural materials such as rocks and soils vary spatially. This randomness is usually modelled by random field theory so that the material properties c... [more] The mechanical properties of natural materials such as rocks and soils vary spatially. This randomness is usually modelled by random field theory so that the material properties can be specified at each point in space. When these point-wise material properties are mapped onto a finite element mesh, discretization errors are inevitable. In this study, the discretization errors are studied and suggestions for element sizes in relation with spatial correlation lengths are given. © (2014) Trans Tech Publications, Switzerland.
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2014 |
Podlich NC, Lyamin A, Sloan S, 'A comparison of conic programming software for finite element limit analysis', Applied Mechanics and Materials (2014) [E1] Some common criteria for predicting the plastic failure of geomaterials, including the Mohr-Coulomb model, can be represented as conic constraints. Thus, by formulating finite ele... [more] Some common criteria for predicting the plastic failure of geomaterials, including the Mohr-Coulomb model, can be represented as conic constraints. Thus, by formulating finite element limit analysis (FELA) problems with such materials as second-order cone programs (SOCPs), solutions to small- and medium-scale problems are readily obtained using current state-of-the-art optimisation software that are based on polynomially-bounded interior-point methods (IPMs). Unfortunately, when progressing to large-scale 2D and 3D problems, these schemes often struggle with the increased computational burden of obtaining a search direction at each iteration of the IPM using conventional direct solvers that implement some form of Gaussian elimination. In this paper, current conic optimisation software is compared for some medium and large-sized FELA problems. Additionally, a scheme which avoids the factorisation of large linear systems, through the use of a Krylov subspace solver, is developed and compared to existing software. © (2014) Trans Tech Publications, Switzerland.
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2013 | Kardani M, Lyamin AV, Krabbenhoft K, 'Application of Preconditioned Conjugate Gradient Method to Some Challenging Large Scale Problems in Computational Geomechanics', 25th Biennial Conference on Numerical Analysis, Glasgow (2013) [E3] | ||||||||||
2013 |
Lyamin AV, Krabbenhoft K, Sloan SW, 'Adaptive limit analysis using deviatoric fields', Adaptive Modeling and Simulation 2013 - Proceedings of the VI International Conference on Adaptive Modeling and Simulation, ADMOS 2013, Lisbon, Portugal (2013) [E2]
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2013 |
Huang J, Lyamin AV, Griffiths DV, Sloan SW, Krabbenhoft K, Fenton GA, 'Undrained bearing capacity of spatially random clays by finite elements and limit analysis', Proceedings of the 18th International Conference on Soil Mechanics and Geotechnical Engineering, Paris, France (2013) [E1]
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2013 |
Sloan SW, Lyamin AV, Krabbenhoft K, 'Adaptive finite element limit analysis incorporating steady state pore pressures', Computational Methods for Coupled Problems in Science and Engineering, Ibiza (2013) [E1]
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2013 |
Lyamin AV, Krabbenhøft K, Huang J, 'Dynamic linearization of nonlinear yield envelopes for limit analysis applications', Computational Geomechanics, COMGEO III - Proceedings of the 3nd International Symposium on Computational Geomechanics (2013) © 2013 Computational Geomechanics, COMGEO III - Proceedings of the 3nd International Symposium on Computational Geomechanics. All rights reserved. Computational limit analysis pro... [more] © 2013 Computational Geomechanics, COMGEO III - Proceedings of the 3nd International Symposium on Computational Geomechanics. All rights reserved. Computational limit analysis provides a fast and convenient means of evaluating the stability or bearing capacity of geostructures. It is based on numerical optimization techniques and the latest trend is to use robust conic programming algorithms. The shortcoming, however, is that the types of problems covered by conic programming are not very general. In practice, this means that only criteria containing linear and quadratic terms (such as Drucker-Prager) or those that involve linear terms in the principal stresses (such as Mohr-Coulomb) can be considered. In the present paper this shortcoming is addressed. The idea is to maintain an efficient and robust conic programming algorithm as the main solution engine. Nonlinear criteria are then handled by a dynamic linearization procedure that involves a sequence of standard conic programming solutions in an iterative scheme that turns out to converge relatively rapidly.
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2013 |
Kardani O, Lyamin AV, Krabbenhoft K, 'Iterative Solution of Large Sparse Linear Systems Arising from Application of Interior Point Method in Computational Geomechanics', Proceedings of the World Congress in Engineering, London (2013) [E1]
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2013 |
Qian ZG, Li AJ, Kong V, Lyamin AV, 'Comparisons of seismic rock slope stability assessments between the Hoek-Brown and Mohr-Coulomb failure criteria', From Materials to Structures: Advancement through Innovation. Proceedings of the 22nd Australasian Conference on the Mechanics of Structures and Materials, ACMSM 22, Sydney, Australia (2013) [E1]
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2012 |
Yamamoto K, Lyamin AV, Wilson DW, Abbo AJ, Sloan SW, 'Stability of cohesive-frictional soils with square underground openings', Geotechnical Aspects of Underground Construction in Soft Ground, Roma, Italy (2012) [E1]
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2012 |
Yamamoto K, Lyamin AV, Wilson DW, Abbo AJ, Sloan SW, 'Bearing capacity analysis of cohesive-frictional soils with dual circular tunnels', Geotechnical Aspects of Underground Construction in Soft Ground, Roma, Italy (2012) [E1]
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2012 | Li AJ, Cassidy MJ, Lyamin AV, 'Rock slope risk analysis based on non-linear failure criterion', Harmonising Rock Engineering and the Environment. Proceedings of the 12th ISRM International Congress on Rock Mechanics, Beijing, China (2012) [E1] | ||||||||||
2012 |
Li A-J, Lin H-D, Merifield RS, Lyamin AV, 'A case study of ground response due to diaphragm wall installation', 11th Australian New Zealand Conference on Geomechanics Conference Proceedings, Melbourne, Australia (2012) [E1]
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2012 |
Huang J, Krabbenhoft K, Vicente Da Silva MJ, Lyamin AV, 'Simulating granular column collapse by non-smooth contact dynamics', Computational Mechanics 2012, Sao Paulo (2012) [E3]
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2012 |
Huang J, Krabbenhoft K, Lyamin AV, 'Influence of random microstructures on the elastic properties of cement paste', Proceedings of the 5th Asian-Pacific Symposium on Structural Reliability and its Applications: Sustainable Civil Infrastructures - Hazards, Risk, Uncertainty, Singapore (2012) [E1]
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2011 | Li AJ, Cassidy MJ, Lyamin AV, 'Rock slope risk analysis based on non-linear failure criterion', Harmonising Rock Engineering and the Environment: Proceedings of the 12th ISRM International Congress on Rock Mechanics, Beijing, China (2011) [E3] | ||||||||||
2011 |
Da Silva MV, Krabbenhoft K, Lyamin AV, Sloan SW, 'Rigid-plastic large-deformation analysis of geotechnical penetration problems', Computer Methods for Geomechanics: Frontiers and New Applications. Volume 1, Melbourne, VIC (2011) [E1]
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2011 |
Yamamoto K, Lyamin AV, Wilson DW, Abbo AJ, Sloan SW, 'Bearing capacity of cohesive-frictional soils with multiple tunnels', Compter Methods for Geomechanics: Frontiers and New Applications, Volume 2, Melbourne, VIC (2011) [E1]
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2011 |
Krabbenhoft K, Lyamin AV, Sloan SW, Vicente Da Silva M, 'Mathematical programming formulation of elasto-plasto-dynamics for geomaterials', COMGEO II - Proceedings of the 2nd International Symposium on Computational Geomechanics, Cavtat, Croatia (2011) [E1]
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2011 | Lyamin AV, Krabbenhoft K, Sloan SW, 'Interface conditions modelling in computational limit analysis', COMGEO II - Proceedings of the 2nd International Symposium on Computational Geomechanics, Cavtat, Croatia (2011) [E1] | ||||||||||
2010 | Lyamin AV, Munoz J, Krabbenhoft K, Sloan SW, 'Comparison of adaptive strategies for limit analysis applications', Proceedings of the IV European Conference on Computational Mechanics, Palais des Congres, France (2010) [E3] | ||||||||||
2010 | Munoz JJ, Lyamin AV, Huerta A, 'Limit analysis of anchored walls', Proceedings of the IV European Conference on Computational Mechanics, Palais des Congres, France (2010) [E3] | ||||||||||
2010 |
Krabbenhoft K, Lyamin AV, Sloan SW, 'Associated plasticity for nonassociated frictional materials', Numerical Methods in Geotechnical Engineering, Trondheim, Norway (2010) [E1]
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2009 | Abbo AJ, Wilson DW, Lyamin AV, Sloan SW, 'Undrained stability of a circular tunnel', EURO:TUN 2009 Computational Methods in Tunnelling: Proceedings of the Second International Conference on Computational Methods in Tunnelling, Ruhr University Bochum (2009) [E1] | ||||||||||
2009 | Yamamoto K, Lyamin AV, Wilson DW, Abbo AJ, Sloan SW, 'Limit analysis of shallow tunnels in cohesive-frictional soils', EURO:TUN 2009 Computational Methods in Tunnelling: Proceedings of the Second International Conference on Computational Methods in Tunnelling, Ruhr University Bochum (2009) [E1] | ||||||||||
2009 |
Lyamin AV, Krabbenhoft K, Sloan SW, 'Limit Analysis of Bearing Capacity of Eccentrically Loaded Strip Footing on Clay with Tension Cut-off Interface Conditions', Proceedings of the1st International Symposium on Computational Geomechanics (COMGEO I), Juan-les-Pins, France (2009) [E2]
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2008 |
Al-Tarawneh KK, Buzzi OP, Krabbenhoft K, Lyamin AV, Sloan SW, 'An indirect approach for correlation of permeability and diffusion coefficients', Abstract Book: 4th International Conference on Diffusion in Solids and Liquids, Barcelona, Spain (2008) [E3]
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2008 |
Sloan SW, Krabbenhoft K, Lyamin AV, 'Lower bound shakedown analysis in geotechnics', Proceedings of the 12th International Conference of International Association for Computer Methods and Advances in Geomechanics (IACMAG), Goa, India (2008) [E1]
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2008 |
Wilson DW, Abbo AJ, Sloan SW, Lyamin AV, 'Undrained stability of dual square tunnels', Proceedings of the 12th International Conference of International Association for Computer Methods and Advances in Geomechanics (IACMAG), Goa, India (2008) [E1]
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2008 |
Zhao J, Lyamin AV, Sloan SW, 'Shakedown of cohesive-frictional non-homogeneous soils under moving surface loads', Proceedings of the 12th International Conference of International Association for Computer Methods and Advances in Geomechanics (IACMAG), Goa, India (2008) [E1]
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2008 | Lyamin AV, Krabbenhoft K, Sloan SW, 'Modelling the interface conditions in limit analysis applications', WCCM8, ECCOMAS 2008, Venice, Italy (2008) [E3] | ||||||||||
2008 | Karim MR, Oka F, Krabbenhoft K, Lyamin AV, 'Simulation of long-term consolidation behaviour of soft sensitive clay', WCCM8, ECCOMAS 2008, Venice, Italy (2008) [E3] | ||||||||||
2008 |
Krabbenhoft K, Karim MR, Altarawneh M, Buzzi OP, Lyamin AV, 'Virtual testing and computational homogenization of geomaterials', WCCM8, ECCOMAS 2008, Venice, Italy (2008) [E3]
|
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2007 |
Yamamoto K, Lyamin AV, Sloan SW, Abbo AJ, 'Bearing capacity of a cohesive-frictional soil with a shallow tunnel', Proceedings of the 13th Asian Regional Conference on Soil Mechanics and Geotechnical, Calcutta, India (2007) [E2]
|
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2007 | Krabbenhoft K, Lyamin AV, Sloan SW, 'Three-dimensional Mohr-Coulomb limit analysis using semidefinite programming', Numerical Models in Geomechanics: Proceedings of the Tenth International Symposium on Numerical Models in Geomechanics (NUMOG X), Rhodes, Greece (2007) [E1] | ||||||||||
2007 | Krabbenhoft K, Lyamin AV, Sloan SW, 'Shakedown analysis of cohesive-frictional materials using adaptive remeshing', Numerical Models in Geomechanics: Proceedings of the Tenth International Symposium on Numerical Models in Geomechanics (NUMOG X), Rhodes, Greece (2007) [E1] | ||||||||||
2007 |
Merifield R, Lyamin AV, Sloan SW, 'Limit analysis solutions for the bearing capacity of rock masses using the generalised Hoek-Brown criterion', Common Ground. 10th Australia New Zealand Conference on Geomechanics. Proceedings, Brisbane (2007) [E1]
|
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2007 | Krabbenhoft K, Lyamin AV, Sloan SW, 'Variational plasticity models for geomaterials', Computational Plasticity IX: Fundamentals and Applications. COMPLAS IX, Barcelona, Spain (2007) [E1] | ||||||||||
2007 | Lyamin AV, Krabbenhoft K, Sloan SW, 'Shakedown analysis using adaptive mesh refinement', Computational Plasticity IX: Fundamentals and Applications. COMPLAS IX, Barcelona, Spain (2007) [E1] | ||||||||||
2006 |
Shiau J, Lyamin AV, Sloan SW, 'Application of pseudo-static limit analysis in geotechnical earthquake design', Numerical Methods In Geotechnical Engineering (NUMGE 06), Graz, Austria (2006) [E1]
|
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2006 | Krabbenhoft K, Lyamin AV, Sloan SW, 'Conic representations of Mohr-Coulomb plasticity', Proceedings of the 2nd International Conference on Nonsmooth/Nonconvex Mechanics with Applications in Engineering (In Memoriam of Professor P.D. Panagiotopoulos), Thessaloniki, Greece (2006) [E1] | ||||||||||
2005 | Krabbenhoft K, Lyamin AV, Sloan SW, Wriggers P, 'Elastoplasticity By Mathematical Programming Methods', Proceedings of the Eighth International Conference on Computational Plasticity - Computational Plasticity: Fundamentals and Applications (COMPLAS VIII), Barcelona, Spain (2005) [E3] | ||||||||||
2005 | Krabbenhoft K, Lyamin AV, Sloan SW, 'Plastic Design Of Sheet Pile Walls Using Finite Elements And Nonlinear Programming', Proceedings of the Eleventh International Conference On Computer Methods And Advances In Geomechanics, Torino, Italy (2005) [E1] | ||||||||||
2005 | Lyamin AV, Krabbenhoft K, Abbo AJ, Sloan SW, 'General Approach To Modelling Discontinuities In Limit Analysis', Proceedings of the Eleventh International Conference On Computer Methods And Advances In Geomechanics, Torino, Italy (2005) [E1] | ||||||||||
2004 |
Krabbenhoft K, Lyamin AV, Hjiaj M, Sloan SW, 'Upper Bound Shakedown Analysis Of Geostructures', Proceedings of the 9th Symposium on Numerical Models in Geomechanics, Ottawa, Canada (2004) [E1]
|
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2004 |
Krabbenhoft K, Hjiaj M, Sloan SW, Lyamin AV, 'Discontinuous Velocity Field For General Yield Criteria', Proceedings of the 9th Symposium on Numerical Models in Geomechanics, Ottawa, Canada (2004) [E1]
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2004 | Hjiaj M, Lyamin AV, Krabbenhoft K, Sloan SW, 'A Lower Bound Formulation For Shakedown Analysis', Proceedings of the 9th Symposium on Numerical Models in Geomechanics, Ottawa, Canada (2004) [E1] | ||||||||||
2004 |
Merifield RS, Lyamin AV, Sloan SW, 'Three Dimensional Pullout Capacity Of Earth Anchors', Proceedings of the 9th Symposium on Numerical Models in Geomechanics, Ottawa, Canada (2004) [E1]
|
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2004 |
Krabbenhoft K, Hjiaj M, Lyamin AV, Sloan SW, 'Limit Analysis Of Materials With Nonassociated Flow Rules', 4th European Congress on Computational Methods in Applied Sciences and Engineering, Jyvaskyla, Finland (2004) [E2]
|
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2004 |
Lyamin AV, Krabbenhoft K, Sloan SW, Hjiaj M, 'An Adaptive Algorithm For Upper Bound Limit Analysis Using Discontinuous Velocity Fields', 4th European Congress on Computational Methods in Applied Sciences and Engineering, Jyvaskyla, Finland (2004) [E2]
|
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2004 | Lyamin AV, Hjiaj M, Krabbenhoft K, Sloan SW, 'Stability Of Conical Excavations In Cohesive Soils', Fourth International Conference on Landslides, Slope Stability and the Safety of Infrastructures, Kuala Lumpur, Malaysia (2004) [E2] | ||||||||||
2003 | Lyamin AV, Sloan SW, Hjiaj M, 'Different Approaches To Introduction Of Velocity Discontinuities In Upper Bound Limit Analysis', 5th Euromech Solid Mechanics Conference, Thessaloniki, Greece (2003) [E2] | ||||||||||
2003 | Hjiaj M, Lyamin AV, Sloan SW, 'Bearing Capacity Of A Shallow Foundation Subjected To An Eccentric Load Using Numerical Limit Analysis', International Symposium On Shallow Foundations (FONDSUP 2003), Paris, France (2003) [E2] | ||||||||||
2003 | Lyamin AV, Sloan SW, Hjiaj M, 'Stability Of Circular And Square Excavations In Cohesive Soils With Strength Increasing With Depth', XIIIth European Conference On Soil Mechanics And Geotechnical Engineering, Prague, Czech Republic (2003) [E1] | ||||||||||
2003 | Hjiaj M, Lyamin AV, Sloan SW, 'Calculation Of The Ng Bearing Capacity Factor By FE Limit Analysis', VIIth International Conference On Computational Plasticity (COMPLAS VII), Barcelona, Spain (2003) [E2] | ||||||||||
2003 | Lyamin AV, Sloan SW, Hjiaj M, 'Adaptive Algorithm For Lower Bound Limit Analysis', Proceedings Of The First International Conference On Adaptive Modeling And Simulation, Goteborg, Sweden (2003) [E2] | ||||||||||
2002 | Hjiaj M, Lyamin AV, Sloan SW, 'Bearing Capacity Of A Strip Footing Subjected To An Inclined Load', Proceedings 5th ANZ Young Geotechnical Professionals Conference, Rotorua, New Zealand (2002) [E1] | ||||||||||
2002 |
Hjiaj M, Merifield RS, Lyamin AV, Sloan SW, 'Rigorous Limit Analysis Solutions for Stability of Geotechnical Structures', 5th European Conference on Numerical Methods in Geotechnical Engineering (NUMGE 2002), Paris, France (2002) [E1]
|
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2002 | Hjiaj M, Lyamin AV, Sloan SW, 'Failure Envelopes For Strip Footing Under Inclined Loading By FE Limit Analysis', Fifth World Congress On Computational Mechanics, Vienna, Austria (2002) [E2] | ||||||||||
2002 | Hjiaj M, Lyamin AV, Sloan SW, 'Finite Element Limit Analysis Of Strip Footings Under Inclined Loading', Numerical Models In Geomechanics, Rome, Italy (2002) [E2] | ||||||||||
2001 | Lyamin AV, Sloan SW, 'Mesh Generation For Lower Bound Limit Analysis', Proceedings of the European Conference on Computational Mechanics, Poland (2001) [E2] | ||||||||||
2001 |
Merifield RS, Lyamin AV, Pearce A, Yu HS, Sloan SW, 'Pullout capacity of earth anchors', PROCEEDINGS OF THE FIFTEENTH INTERNATIONAL CONFERENCE ON SOIL MECHANICS AND GEOTECHNICAL ENGINEERING VOLS 1-3, ISTANBUL, TURKEY (2001)
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2001 | Lyamin AV, Sloan SW, 'Stability analysis of circular and square excavations', Proceedings of the Tenth International Conference on Computer Methods and Advances in Geomechanics, Arizona, USA (2001) [E2] | ||||||||||
2001 |
Lyamin AV, Jack DL, Sloan SW, 'Collapse Analysis of Square Tunnels in Cohesive-Frictional Soils', Proceedings of the First Asian-Pacific Congress on Computational Mechanics, Sydney (2001) [E1]
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2001 | Lyamin AV, Sloan SW, 'Limit analysis using finite elements and nonlinear programming', Proceedings of the First Computatinal Solid and Fluid Mechanics Conference, Cambridge, USA (2001) [E1] | ||||||||||
2000 |
Lyamin AV, Sloan SW, 'Stability of a plane strain circular tunnel in a cohesive-frictional', Developments in Theoretical Geomechanics- The John Booker Memorial Symposium, Sydney, Australia (2000) [E1]
|
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2000 |
Sloan SW, Lyamin AV, 'Lower Bound Limit Analysis Using Nonlinear Programming', European Congress on Computational Methods in Applied Sciences and Engineering, Barcelona, Spain (2000) [E2]
|
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2000 |
Lyamin AV, Sloan SW, 'Upper Bound Limit Analysis Using Linear Finite Elements and Nonlinear Programming', Finite Elements: Techniques and Developments, Leuven, Belgium (2000) [E1]
|
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2000 | Lyamin AV, Sloan SW, 'Rigorous Lower Bound Solutions for The Bearing Capacity of Rectangular Foundations', GeoEng2000 Conference Proceedings, Melbourne, Australia (2000) [E1] | ||||||||||
1999 |
Merifield RS, Lyamin AV, Sloan SW, Yu H-S, 'Three-dimensional stability analysis of plate anchors in clay', Proceedings of the seventh international symposium on numerical models in geomechanics, Austria (1999) [E1]
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Show 78 more conferences |
Grants and Funding
Summary
Number of grants | 26 |
---|---|
Total funding | $22,146,459 |
Click on a grant title below to expand the full details for that specific grant.
20201 grants / $407,510
Efficient Computational Strategies for Three-Dimensional Limit Analysis$407,510
Funding body: ARC (Australian Research Council)
Funding body | ARC (Australian Research Council) |
---|---|
Project Team | Professor Andrei Lyamin, Professor Andrei Lyamin, Lprof SCOTT Sloan |
Scheme | Discovery Projects |
Role | Lead |
Funding Start | 2020 |
Funding Finish | 2022 |
GNo | G1900184 |
Type Of Funding | Aust Competitive - Commonwealth |
Category | 1CS |
UON | Y |
20132 grants / $54,385
DVC(R) Research Support for Future Fellow (FT12)$29,385
Funding body: University of Newcastle
Funding body | University of Newcastle |
---|---|
Project Team | Professor Andrei Lyamin |
Scheme | Future Fellowship Support |
Role | Lead |
Funding Start | 2013 |
Funding Finish | 2015 |
GNo | G1201100 |
Type Of Funding | Internal |
Category | INTE |
UON | Y |
Micro X-ray for Materials Facility$25,000
Funding body: University of Newcastle
Funding body | University of Newcastle |
---|---|
Project Team | Dr Will Gates, Dr Asadul Haque, Professor Buddhima Indraratna, Dr Samanthika Liyanapathirana, Associate Professor Arul Arulrajah, Dr Cordelia Selomuyla, Professor Jay Sanjayan, Associate Professor Kristian Krabbenhoft, Dr Cholachat Rujikiatkamjorn, Professor Raymond Cas, Associate Professor Chin Leo, Dr Erwin Oh, Dr Alistair Evans, Professor Andrei Lyamin, Dr Guillermo Narsilio, Dr Samuel Yuen, Professor David Williams, Arulrajah, Arul, Cas, Raymond, Evans, Alistair, Gates, Will, Haque, Asadul, Leo, Chin, Liyanapathirana, Samanthika, Liyanapathirana, Samanthika, Narsilio, Guillermo, Oh, Erwin, Selomulya, Cordelia, Yuen, Samuel |
Scheme | Equipment Grant |
Role | Investigator |
Funding Start | 2013 |
Funding Finish | 2013 |
GNo | G1200520 |
Type Of Funding | Internal |
Category | INTE |
UON | Y |
20121 grants / $846,320
Variational Multiscale Modelling of Granular Materials$846,320
Funding body: ARC (Australian Research Council)
Funding body | ARC (Australian Research Council) |
---|---|
Project Team | Professor Andrei Lyamin |
Scheme | Future Fellowships |
Role | Lead |
Funding Start | 2012 |
Funding Finish | 2016 |
GNo | G1101109 |
Type Of Funding | Aust Competitive - Commonwealth |
Category | 1CS |
UON | Y |
20114 grants / $18,466,469
ARC Centre of Excellence for Geotechnical Science and Engineering$17,266,469
Funding body: ARC (Australian Research Council)
Funding body | ARC (Australian Research Council) |
---|---|
Project Team | Lprof SCOTT Sloan, Professor Mark Cassidy, Professor Mark Randolph, Emeritus Professor John Carter, Prof DAICHAO Sheng, Professor Buddhima Indraratna, Professor David White, Professor Andrei Lyamin, Professor Christophe Gaudin, Dr Richard Merifield, Mr Harry Poulos, Prof DV Griffiths, Professor Shanyong Wang, Professor Olivier Buzzi, Dr Cholachat Rujikiatkamjorn |
Scheme | ARC Centres of Excellence |
Role | Investigator |
Funding Start | 2011 |
Funding Finish | 2017 |
GNo | G0900169 |
Type Of Funding | Aust Competitive - Commonwealth |
Category | 1CS |
UON | Y |
ARC Centre of Excellence for Geotechnical Science and Engineering$500,000
Funding body: NSW Office for Science & Medical Research
Funding body | NSW Office for Science & Medical Research |
---|---|
Project Team | Lprof SCOTT Sloan, Professor Mark Cassidy, Professor Mark Randolph, Emeritus Professor John Carter, Prof DAICHAO Sheng, Professor Buddhima Indraratna, Professor David White, Associate Professor Kristian Krabbenhoft, Professor Andrei Lyamin, Professor Christophe Gaudin, Dr Richard Merifield |
Scheme | Science Leveraging Fund |
Role | Investigator |
Funding Start | 2011 |
Funding Finish | 2011 |
GNo | G0900187 |
Type Of Funding | Other Public Sector - State |
Category | 2OPS |
UON | Y |
ARC Centre of Excellence for Geotechnical Science and Engineering$350,000
Funding body: Coffey Geotechnics
Funding body | Coffey Geotechnics |
---|---|
Project Team | Professor Olivier Buzzi, Professor Mark Cassidy, Professor Mark Randolph, Emeritus Professor John Carter, Prof DAICHAO Sheng, Professor Buddhima Indraratna, Professor David White, Professor Andrei Lyamin, Professor Christophe Gaudin, Dr Richard Merifield, Mr Harry Poulos, Prof DV Griffiths, Lprof SCOTT Sloan |
Scheme | ARC Centres of Excellence Partner Funding |
Role | Investigator |
Funding Start | 2011 |
Funding Finish | 2017 |
GNo | G1200004 |
Type Of Funding | C3111 - Aust For profit |
Category | 3111 |
UON | Y |
ARC Centre of Excellence for Geotechnical Science and Engineering$350,000
Funding body: Douglas Partners
Funding body | Douglas Partners |
---|---|
Project Team | Professor Olivier Buzzi, Professor Mark Cassidy, Professor Mark Randolph, Emeritus Professor John Carter, Prof DAICHAO Sheng, Professor Buddhima Indraratna, Professor David White, Professor Andrei Lyamin, Professor Christophe Gaudin, Dr Richard Merifield, Mr Harry Poulos, Prof DV Griffiths, Lprof SCOTT Sloan |
Scheme | ARC Centres of Excellence Partner Funding |
Role | Investigator |
Funding Start | 2011 |
Funding Finish | 2017 |
GNo | G1200005 |
Type Of Funding | C3111 - Aust For profit |
Category | 3111 |
UON | Y |
20101 grants / $460,000
Microstructure-Based Computational Homogenization of Geomaterials$460,000
Funding body: ARC (Australian Research Council)
Funding body | ARC (Australian Research Council) |
---|---|
Project Team | Professor Andrei Lyamin, Professor Olivier Buzzi |
Scheme | Discovery Projects |
Role | Lead |
Funding Start | 2010 |
Funding Finish | 2012 |
GNo | G0190033 |
Type Of Funding | Aust Competitive - Commonwealth |
Category | 1CS |
UON | Y |
20092 grants / $320,000
Variational Plasticity Models and Algorithms for Frictional Geomaterials $300,000
Funding body: ARC (Australian Research Council)
Funding body | ARC (Australian Research Council) |
---|---|
Project Team | Professor Andrei Lyamin, Associate Professor Kristian Krabbenhoft |
Scheme | Discovery Projects |
Role | Lead |
Funding Start | 2009 |
Funding Finish | 2011 |
GNo | G0188806 |
Type Of Funding | Aust Competitive - Commonwealth |
Category | 1CS |
UON | Y |
Computational Homogenization of Geomaterials Using X-ray Microtomography$20,000
Funding body: University of Newcastle
Funding body | University of Newcastle |
---|---|
Project Team | Associate Professor Kristian Krabbenhoft, Professor Andrei Lyamin, Professor Olivier Buzzi |
Scheme | Near Miss Grant |
Role | Investigator |
Funding Start | 2009 |
Funding Finish | 2009 |
GNo | G0189830 |
Type Of Funding | Internal |
Category | INTE |
UON | Y |
20083 grants / $497,500
Microstructural analysis and modelling of copper ore agglomerates for heap leaching$390,000
Funding body: ARC (Australian Research Council)
Funding body | ARC (Australian Research Council) |
---|---|
Project Team | Associate Professor Kristian Krabbenhoft, Lprof SCOTT Sloan, Mr P Shrestha, Professor Andrei Lyamin, Dr Allan Jones, Mr Danny Castillo, Dr John Truelove |
Scheme | Linkage Projects |
Role | Investigator |
Funding Start | 2008 |
Funding Finish | 2011 |
GNo | G0188452 |
Type Of Funding | Aust Competitive - Commonwealth |
Category | 1CS |
UON | Y |
Microstructural analysis and modelling of copper ore agglomerates for heap leaching$105,000
Funding body: BHP Billiton Innovation Pty Ltd
Funding body | BHP Billiton Innovation Pty Ltd |
---|---|
Project Team | Associate Professor Kristian Krabbenhoft, Lprof SCOTT Sloan, Mr P Shrestha, Professor Andrei Lyamin, Dr Allan Jones, Mr Danny Castillo, Dr John Truelove |
Scheme | Linkage Projects Partner Funding |
Role | Investigator |
Funding Start | 2008 |
Funding Finish | 2010 |
GNo | G0189234 |
Type Of Funding | Grant - Aust Non Government |
Category | 3AFG |
UON | Y |
WCCM 8/ECCOMAS 2008 - VIII World Congress on Computational Mechanics, Venice, Italy, 30/6/2008 - 4/7/2008$2,500
Funding body: University of Newcastle
Funding body | University of Newcastle |
---|---|
Project Team | Professor Andrei Lyamin |
Scheme | Travel Grant |
Role | Lead |
Funding Start | 2008 |
Funding Finish | 2008 |
GNo | G0189282 |
Type Of Funding | Internal |
Category | INTE |
UON | Y |
20071 grants / $1,700
COMPLAS 2007 - IX International Conference on Computational Plasticity, Barcelona, Spain, 5/9/2007 - 7/9/2007$1,700
Funding body: University of Newcastle
Funding body | University of Newcastle |
---|---|
Project Team | Professor Andrei Lyamin |
Scheme | Travel Grant |
Role | Lead |
Funding Start | 2007 |
Funding Finish | 2007 |
GNo | G0188168 |
Type Of Funding | Internal |
Category | INTE |
UON | Y |
20063 grants / $795,782
PRC - Priority Research Centre for Geotechnical & Materials Modelling$524,282
Funding body: University of Newcastle
Funding body | University of Newcastle |
---|---|
Project Team | Lprof SCOTT Sloan, Professor Irina Belova, Emeritus Professor John Carter, Professor Graeme Murch, Prof DAICHAO Sheng, Professor Stephen Fityus, Professor Andrei Lyamin, Associate Professor Andrew Abbo, Associate Professor Kristian Krabbenhoft |
Scheme | Priority Research Centre |
Role | Investigator |
Funding Start | 2006 |
Funding Finish | 2013 |
GNo | G0186948 |
Type Of Funding | Internal |
Category | INTE |
UON | Y |
Optimization Based Finite Element Procedures for Geotechnical Applications$270,000
Funding body: ARC (Australian Research Council)
Funding body | ARC (Australian Research Council) |
---|---|
Project Team | Professor Andrei Lyamin, Associate Professor Kristian Krabbenhoft |
Scheme | Discovery Projects |
Role | Lead |
Funding Start | 2006 |
Funding Finish | 2008 |
GNo | G0185306 |
Type Of Funding | Aust Competitive - Commonwealth |
Category | 1CS |
UON | Y |
NUMGE2006 - Sixth European Conference on Numerical Methods in Geotechnical Engineering, Graz Austria, 6-8 September 2006$1,500
Funding body: University of Newcastle
Funding body | University of Newcastle |
---|---|
Project Team | Professor Andrei Lyamin |
Scheme | Travel Grant |
Role | Lead |
Funding Start | 2006 |
Funding Finish | 2006 |
GNo | G0186773 |
Type Of Funding | Internal |
Category | INTE |
UON | Y |
20052 grants / $83,507
Rigorous three dimensional plasticity solutions for soil and rock slopes$81,107
Funding body: ARC (Australian Research Council)
Funding body | ARC (Australian Research Council) |
---|---|
Project Team | Conjoint Professor Richard Merifield, Professor Andrei Lyamin |
Scheme | Discovery Projects |
Role | Investigator |
Funding Start | 2005 |
Funding Finish | 2007 |
GNo | G0185675 |
Type Of Funding | Aust Competitive - Commonwealth |
Category | 1CS |
UON | Y |
The 11th International Conference of IACMAG, the International Association of Computer Methods and Advances in Geomechanics, 19-24 June 2005$2,400
Funding body: University of Newcastle
Funding body | University of Newcastle |
---|---|
Project Team | Professor Andrei Lyamin |
Scheme | Travel Grant |
Role | Lead |
Funding Start | 2005 |
Funding Finish | 2005 |
GNo | G0185503 |
Type Of Funding | Internal |
Category | INTE |
UON | Y |
20041 grants / $2,400
ECCOMAS 2004 - European Congress on Computational Methods in Applied Sciences and Engineering, 24-28 July 2004, Finland$2,400
Funding body: University of Newcastle
Funding body | University of Newcastle |
---|---|
Project Team | Professor Andrei Lyamin |
Scheme | Travel Grant |
Role | Lead |
Funding Start | 2004 |
Funding Finish | 2004 |
GNo | G0184427 |
Type Of Funding | Internal |
Category | INTE |
UON | Y |
20031 grants / $2,400
ADMOS 2003 - International Conference on Adaptive Modelling and Simulation, Goteborg, Sweden 29 September - 1 October 2003$2,400
Funding body: University of Newcastle
Funding body | University of Newcastle |
---|---|
Project Team | Professor Andrei Lyamin |
Scheme | Travel Grant |
Role | Lead |
Funding Start | 2003 |
Funding Finish | 2003 |
GNo | G0183083 |
Type Of Funding | Internal |
Category | INTE |
UON | Y |
20022 grants / $203,686
Adaptive Algorithms for Lower Bound Limit Analysis$201,186
Funding body: ARC (Australian Research Council)
Funding body | ARC (Australian Research Council) |
---|---|
Project Team | Professor Andrei Lyamin |
Scheme | Discovery Projects |
Role | Lead |
Funding Start | 2002 |
Funding Finish | 2004 |
GNo | G0181090 |
Type Of Funding | Aust Competitive - Commonwealth |
Category | 1CS |
UON | Y |
WCCM V, Vienna 7-12 July, 2002$2,500
Funding body: University of Newcastle
Funding body | University of Newcastle |
---|---|
Project Team | Professor Andrei Lyamin |
Scheme | Travel Grant |
Role | Lead |
Funding Start | 2002 |
Funding Finish | 2002 |
GNo | G0181998 |
Type Of Funding | Internal |
Category | INTE |
UON | Y |
20011 grants / $2,400
2nd European Conference on Computational Mechanics, Poland 26-29 June 2001$2,400
Funding body: University of Newcastle
Funding body | University of Newcastle |
---|---|
Project Team | Professor Andrei Lyamin |
Scheme | Travel Grant |
Role | Lead |
Funding Start | 2001 |
Funding Finish | 2001 |
GNo | G0180833 |
Type Of Funding | Internal |
Category | INTE |
UON | Y |
20001 grants / $2,400
The Fifth International conference on Computational Structures Technology, Belgium$2,400
Funding body: University of Newcastle
Funding body | University of Newcastle |
---|---|
Project Team | Professor Andrei Lyamin |
Scheme | Travel Grant |
Role | Lead |
Funding Start | 2000 |
Funding Finish | 2000 |
GNo | G0179871 |
Type Of Funding | Internal |
Category | INTE |
UON | Y |
Research Supervision
Number of supervisions
Current Supervision
Commenced | Level of Study | Research Title | Program | Supervisor Type |
---|---|---|---|---|
2007 | Masters | Virtual testing of geomaterials | Geotechnical Engineering, University of Newcastle | Principal Supervisor |
2005 | PhD | Rigorous three dimensional plasticity solutions for soil and rock slopes | Geotechnical Engineering, University of Western Australia | Co-Supervisor |
Past Supervision
Year | Level of Study | Research Title | Program | Supervisor Type |
---|---|---|---|---|
2018 | PhD | Adaptive Discontinuity Layout Optimisation For Geotechnical Stability Analysis | PhD (Civil Eng), College of Engineering, Science and Environment, The University of Newcastle | Co-Supervisor |
2018 | PhD | The Development of Efficient Algorithms for Large-Scale Finite Element Limit Analysis | PhD (Civil Eng), College of Engineering, Science and Environment, The University of Newcastle | Principal Supervisor |
2017 | PhD | Application of Stochastic Limit Analysis to Geotechnical Stability Problems | PhD (Civil Eng), College of Engineering, Science and Environment, The University of Newcastle | Principal Supervisor |
2015 | PhD | Efficient Iterative Sparse Linear Solvers for Large-Scale Computational Geomechanics | PhD (Civil Eng), College of Engineering, Science and Environment, The University of Newcastle | Co-Supervisor |
2011 | PhD | Experimental and Numerical Studies of Diffusion in Geomaterials | PhD (Civil Eng), College of Engineering, Science and Environment, The University of Newcastle | Co-Supervisor |
Professor Andrei Lyamin
Position
Professor
Centre for Geotechnical and Materials Modelling
School of Engineering
College of Engineering, Science and Environment
Focus area
Civil Engineering
Contact Details
andrei.lyamin@newcastle.edu.au | |
Phone | (02) 4921 7073 |
Fax | (02) 4921 6991 |
Office
Room | EA230 |
---|---|
Building | Engineering A |
Location | Callaghan University Drive Callaghan, NSW 2308 Australia |