
Dr Hassan Sabetamal
Research Associate
School of Engineering (Civil Engineering)
- Email:hassan.sabetamal@newcastle.edu.au
- Phone:(02) 4921 2042
Career Summary
Biography
Hassan Sabetamal works in the area of computational geomechanics
Research Expertise
Computational Plasticity
Computational Contact Mechanics
Dynamic Soil-fluid-Structure Interaction
Finite Elements Method
In situ Soil Testing and Site Investigation
Soil Conditioning in Mechanised Tunnelling
Teaching Expertise
Geomechanics Engineering Computations
Administrative Expertise
NA
Collaborations
Qualifications
- Doctor of Philosophy, University of Newcastle
Keywords
- Computational Geomechanics
- Computational Plasticity
- Computational contact mechanics
- Finite Element Analysis
- Nonlinear Dynamic Coupled Analysis
- Soil – Structure Interaction
Languages
- Persian (excluding Dari) (Fluent)
- Azeri (Fluent)
- English (Fluent)
Fields of Research
Code | Description | Percentage |
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090501 | Civil Geotechnical Engineering | 50 |
010301 | Numerical Analysis | 50 |
Professional Experience
UON Appointment
Title | Organisation / Department |
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Research Associate | University of Newcastle School of Engineering Australia |
Academic appointment
Dates | Title | Organisation / Department |
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4/06/2015 - 3/06/2017 | Post-doctoral Research Fellow | ARC Centre of Excellence on Geotechnical Science and Engineering Australia |
29/10/2014 - 13/03/2015 | Research Associate | ARC Centre of Excellence on Geotechnical Science and Engineering Civil, Surveying and Environmental Engineering Australia |
Professional appointment
Dates | Title | Organisation / Department |
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1/05/2007 - 1/06/2010 |
Geotechnical Site Investigation Manager Featured Project: Site Investigation of Tabriz Urban Railway Line 2 |
P.O.R Consulting Engineers Geotechnics Iran, Islamic Republic of |
Awards
Prize
Year | Award |
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2014 |
IACMAG Excellent paper Award for junior researchers International Association for Computer methods and Advances in Geomechanics (IACMAG) | Japan |
2014 |
Australian Geomechanics Society (AGS) NSW research Award 2014 Australian Geomechanics Society |
2013 |
Postgraduate Research Prize from the Faculty of Engineering and Built Environment, The University of Newcastle Faculty of Engineering and Built Environment - The University of Newcastle (Australia) |
Recipient
Year | Award |
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2010 |
UNIPRS Postgraduate Research Scholarship Faculty of Engineering and Built Environment - The University of Newcastle (Australia) |
2010 |
UNIPRS Postgradute Research Scholarship (UNRSE ARC PRC) Faculty of Engineering and Built Environment - The University of Newcastle (Australia) |
Teaching
Code | Course | Role | Duration |
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CIVL3280 |
Geomechanics 2 Faculty of Engineering and Built Environment - The University of Newcastle (Australia) The aim of this course is to introduce the principles of soil mechanics. Its purpose is to provide the foundation for geotechnical and geoenvironmental engineering design. |
Substitute Lecturer and tutor | 1/03/2016 - 1/07/2016 |
Publications
For publications that are currently unpublished or in-press, details are shown in italics.
Journal article (6 outputs)
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2018 |
Sabetamal H, Carter JP, Sloan SW, 'Pore Pressure Response to Dynamically Installed Penetrometers', International Journal of Geomechanics, 18 04018061-1-04018061-16 (2018) [C1]
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2016 |
Sabetamal H, Carter JP, Nazem M, Sloan SW, 'Coupled analysis of dynamically penetrating anchors', Computers and Geotechnics, 77 26-44 (2016) [C1] © 2016 Elsevier Ltd. The development of a numerical procedure for the finite element analysis of anchors dynamically penetrating into saturated soils is outlined, highlighting its... [more] © 2016 Elsevier Ltd. The development of a numerical procedure for the finite element analysis of anchors dynamically penetrating into saturated soils is outlined, highlighting its unique features and capabilities. The mechanical behaviour of saturated porous media is predicted using mixture theory. An algorithm is developed for frictional contact in terms of effective normal stress. The contact formulation is based on a mortar segment-to-segment scheme, which considers the interpolation functions of the contact elements to be of order N, thus overcoming a numerical deficiency of the so-called node-to-segment (NTS) contact algorithm. The nonlinear behaviour of the solid constituent is captured by the Modified Cam Clay soil model. The soil constitutive model is also adapted so as to incorporate the dependence of clay strength on strain rate. An appropriate energy-absorbing boundary is used to eliminate possible wave reflections from the artificial mesh boundaries. To illustrate the use of the proposed computational scheme, simulations of dynamically penetrating anchors are conducted. Results are presented and discussed for the installation phase followed by 'setup', i.e., pore pressure dissipation and soil consolidation. The results, in particular, reveal the effects of strain rate on the generation of excess pore pressure, bearing resistance and frictional forces. The setup analyses also illustrate the pattern in which pore pressures are dissipated within the soil domain after installation. Hole closure behind a dynamic projectile is also illustrated by an example.
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2016 |
Sabetamal H, Nazem M, Sloan SW, Carter JP, 'Frictionless contact formulation for dynamic analysis of nonlinear saturated porous media based on the mortar method', International Journal for Numerical and Analytical Methods in Geomechanics, 40 25-61 (2016) [C1] © 2015 John Wiley & Sons, Ltd. A finite element algorithm for frictionless contact problems in a two-phase saturated porous medium, considering finite deformation and inerti... [more] © 2015 John Wiley & Sons, Ltd. A finite element algorithm for frictionless contact problems in a two-phase saturated porous medium, considering finite deformation and inertia effects, has been formulated and implemented in a finite element programme. The mechanical behaviour of the saturated porous medium is predicted using mixture theory, which models the dynamic advection of fluids through a fully saturated porous solid matrix. The resulting mixed formulation predicts all field variables including the solid displacement, pore fluid pressure and Darcy velocity of the pore fluid. The contact constraints arising from the requirement for continuity of the contact traction, as well as the fluid flow across the contact interface, are enforced using a penalty approach that is regularised with an augmented Lagrangian method. The contact formulation is based on a mortar segment-to-segment scheme that allows the interpolation functions of the contact elements to be of order N. The main thrust of this paper is therefore how to deal with contact interfaces in problems that involve both dynamics and consolidation and possibly large deformations of porous media. The numerical algorithm is first verified using several illustrative examples. This algorithm is then employed to solve a pipe-seabed interaction problem, involving large deformations and dynamic effects, and the results of the analysis are also compared with those obtained using a node-to-segment contact algorithm. The results of this study indicate that the proposed method is able to solve the highly nonlinear problem of dynamic soil-structure interaction when coupled with pore water pressures and Darcy velocity.
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2015 |
Carter JP, Sabetamal H, Nazem M, Sloan SW, 'One-dimensional test problems for dynamic consolidation', ACTA GEOTECHNICA, 10 173-178 (2015) [C1]
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2014 |
Sabetamal H, Nazem M, Carter JP, Sloan SW, 'Large deformation dynamic analysis of saturated porous media with applications to penetration problems', COMPUTERS AND GEOTECHNICS, 55 117-131 (2014) [C1]
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Show 3 more journal articles |
Conference (9 outputs)
Year | Citation | Altmetrics | Link | ||||
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2018 |
Sabetamal H, Carter J, Sloan S, 'Pipe-seabed interaction under lateral motion', Numerical Methods in Geotechnical Engineering IX, Porto, Portugal (2018)
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2016 |
Sabetamal H, Carter JP, Nazem M, Sloan SW, 'Numerical study of the effects of strain rate on the behaviour of dynamically penetrating anchors in clay', Proceedings of the International Conference on Computational Methods, Berkeley, CA, USA (2016) [E1]
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2015 |
Sabetamal H, Nazem M, Sloan SW, Carter JP, 'Numerical modelling of offshore pipe-seabed interaction problems', 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] This study outlines the development of a computational scheme which accounts for large deformation dynamic behaviour of saturated porous media and models soil-structure interactio... [more] This study outlines the development of a computational scheme which accounts for large deformation dynamic behaviour of saturated porous media and models soil-structure interaction using a high-order frictional contact algorithm. The numerical scheme is employed to analyse a dynamic coupled problem of pipeline-seabed interaction in two steps, including the simulation of the dynamic embedment process as well as the subsequent consolidation stage. The analysis considers a frictional interface between the pipe and the soil which is normally ignored in most analyses due to numerical difficulties. The nonlinear behaviour of the solid constituent is captured by the Modified Cam Clay soil model, allowing the incorporation of shear-induced pore water pressures during the embedment process. The results of this study indicate that the proposed method is able to solve the highly nonlinear problem of dynamic soil-pipe interaction coupled with pore water pressures and Darcy velocity. The results also show that a dynamic approach is necessary for coupled problems of pipe-seabed interaction involving very fast loading. © 2015 Taylor & Francis Group, London.
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2013 |
Sabetamal H, Nazem M, Carter JP, 'Numerical analysis of torpedo anchors', ComGeo III, Computational Geomechanics, Krakow, Poland (2013) [E2]
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2012 |
Sabetamal H, Nazem M, Sloan SW, Carter JP, 'Finite element simulation of dynamic pile penetration into a saturated porous medium', 6th European Congress on Computational Methods in Applied Sciences and Engineering, ECCOMAS 2012, Vienna, Austria (2012) [E2]
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2011 |
Sabetamal H, Nazem M, Sloan SW, Carter JP, 'Numerical simulation of dynamic pore fluid-solid interaction in fully saturated non-linear porous media', COMPLAS XI: 11th International Conference on Computational Plasticity, Barcelona, Spain (2011) [E2]
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2009 |
Hajialilue-Bonab M, Sabetamal H, Katebi H, Ahmadi-Adli M, 'Experimental study on compressibility behavior of foamed sandy soil', Geotechnical Aspects of Underground Construction in Soft Ground - Proceedings of the 6th International Symposium, IS-SHANGHAI 2008 (2009) In order to assess the influence of different foam types on compressibility behavior of conditioned sand, a set of tests were performed on three gradation of sandy soil. Some inde... [more] In order to assess the influence of different foam types on compressibility behavior of conditioned sand, a set of tests were performed on three gradation of sandy soil. Some index tests were also undertaken for verifying foam agents characteristics and foam generator quality. Details and discussion about different aspects of mentioned cases have been presented in this paper. Compressibility tests were performed by a 151 mm diameter Rowe Cell and foam generation was carried out by foam generator which was constructed by the authors. © 2009 Taylor & Francis Group.
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2009 |
Hajialilue-Bonab M, Ahmadi-Adli M, Sabetamal H, Katebi H, 'The effects of sample dimension and gradation on shear strength parameters of conditioned soils in EPBM', Geotechnical Aspects of Underground Construction in Soft Ground - Proceedings of the 6th International Symposium, IS-SHANGHAI 2008 (2009) Mechanical properties of conditioned soils in EPBM tunneling consist of lots of unknowns. In this research, the tests has been arranged to fulfill of four goals. Firstly the effec... [more] Mechanical properties of conditioned soils in EPBM tunneling consist of lots of unknowns. In this research, the tests has been arranged to fulfill of four goals. Firstly the effects of conditioning on the shear strength variation have been investigated. Secondly an investigation on effects of conditioning on shear strength parameters (C, ¿) has been performed. In third step the results exerted from two previous stages have been compared for two shearing apparatuses of conventional and large shear boxes. The last goal of the research is exploration of effects of changes in conditioning parameters on shear strength. It is found that the C&¿ for tested soils obtained from large shear box are usually greater than the results of the same soil in conventional shear test. This result is less significant for conditioned soil with compared to unconditioned soil and it is found to be a function of injected foam content. © 2009 Taylor & Francis Group. |
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Show 6 more conferences |
Research Projects
Quantitative risk assessment of unsaturated soil slopes 2018 - 2020
The project aims to develop an analysis and prediction tool for risk assessment of rainfall and seepage induced landslides, by integrating cutting-edge technologies in three key areas: large deformation, unsaturated soils and uncertainty&risk.
Development and applications of numerical algorithms for the analysis of dynamic soil-structure interaction problems 2015 - 2018
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Research Collaborations
The map is a representation of a researchers co-authorship with collaborators across the globe. The map displays the number of publications against a country, where there is at least one co-author based in that country. Data is sourced from the University of Newcastle research publication management system (NURO) and may not fully represent the authors complete body of work.
Country | Count of Publications | |
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Australia | 8 | |
Iran, Islamic Republic of | 2 |
Dr Hassan Sabetamal
Position
Research Associate
ARC Centre of Excellence for Geotechnical Science and Engineering (CGSE)
School of Engineering
Faculty of Engineering and Built Environment
Focus area
Civil Engineering
Contact Details
hassan.sabetamal@newcastle.edu.au | |
Phone | (02) 4921 2042 |
Office
Room | EA 213 |
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Building | EA |
Location | Callaghan University Drive Callaghan, NSW 2308 Australia |