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Dr Thomas Fiedler

Senior Lecturer

School of Engineering (Mechanical Engineering)

Foam and function

Dr Thomas Fiedler is driving the development of new-generation cellular materials with that are light, strong and multi-functional.

Thomas Fiedler with an experiment 

To the untrained eye, the metal sample blocks in Dr Thomas Fiedler's office look almost fragile, with their unusual, porous configurations. But looks can be deceiving, and these metallic structures are, in fact, incredibly strong and versatile materials with potential for widespread industrial application.

The blocks are examples of what are known as cellular materials, which are manufactured by introducing a foaming solution to molten metal that gives the end product an aerated appearance. The materials produced from this and similar techniques are both strong and lightweight, have thermal-insulating and acoustic-dampening properties and can absorb high amounts of energy from an impact – all of which makes them prospectively well-suited to purposes such as car and aircraft manufacturing.

German-born Fiedler has been involved in research and development of cellular materials at the University of Newcastle since moving to the city in 2008 to take up a postdoctoral appointment within the Centre for Geotechnical and Materials Modelling. "This is still largely a development area in terms of research but these materials have great potential and some are already being used in commercial applications, such as luxury motor vehicles," Fiedler explains. "Scientists in the field are working on improving the reliability and consistency of the materials and experimenting with ways to produce them more cost-effectively."

Fiedler is investigating another use for metal foams as part of an Australian Research Council Postdoctoral Fellowship project developing alternative cooling systems for buildings, electronic devices and other applications. The project centres on the design of next-generation 'heat sinks', materials that can be used to absorb heat in place of electrically powered devices. To illustrate their use, Fiedler uses the example of laptop computers, which rely mostly on small, built-in cooling devices to ensure they do not overheat.

"A built-in fan will cool the computer down, but you then need extra power to run the fan, and it adds size to the device," he points out. "A heat sink will absorb and store that heat without adding substantial bulk or requiring additional energy."

Paraffin is recognised as an effective heat sink because it is a phase-change material (PCM) capable of absorbing a substantial amount of heat at the point at which it transforms from solid to liquid form. However, it has poor thermal conductivity, so Fiedler is blending paraffins with cellular metals – such as copper foams – to create prototype composite materials that work more effectively as heat sinks by combining the optimum properties of both.

"A typical application could be solar heating and cooling, where you could use the material to absorb thermal energy during the day then release that heat later to warm buildings or water systems," Fiedler explains. "These composite heat sinks provide a largely untapped solution for energy-efficient temperature control and emission-free heating."

Fiedler's research encompasses both experimental work and the development of high-level computational techniques for modelling new material combinations. He uses the Lattice Monte Carlo Method, a powerful and computationally demanding algorithmic modelling tool. Fiedler has forged collaborations with research groups in Malaysia, Portugal, Slovenia, Brazil and Germany and his work in the development of cellular metals has attracted interest from prospective commercial partners.

"The University of Newcastle produces first-class research in this field," he says. "We have a lot of expertise in our group, access to powerful computers, and collaborations with influential partners around the world – all of which contributes to our strong international reputation."

A new body of work

The development of biologically friendly surgical implants might seem a long way removed from the design of composite metals used in industrial applications, but Dr Thomas Fielder's wide-ranging research spans both fields.

"The connection is that they are both cellular materials," he outlines. "The biomaterials I am working on have a similar structure to the metallic foams I study so I am able to apply my skills in manipulating the properties of cellular materials."

Fiedler is involved in a collaboration with Professor Aldo Boccaccini, a leading biomaterials researcher from the University of Erlangen-Nuremberg, in Germany. Together they are developing surgical implants and devices (scaffolds) that help repair defects in tissue, skin and bones, then dissolve in the body, negating the need for follow-up surgery to remove them.

"Biomaterials have been used for some time, but we are developing third-generation designs, which are both bioactive and able to slowly dissolve," Fiedler states. "I am looking at the construction of the materials, investigating the mechanical properties and experimenting with things like titanium reinforcement to make them stronger."

The collaboration represents a new direction for Fiedler's research and one that he believes perfectly illustrates the vast potential of cellular materials in seemingly disparate disciplines. "Ironically," he adds, "the construction of cellular metals is inspired by bone structure, so applying my research back to the body is, in a way, completing the circle."

Visit the Centre for Geotechnical and Materials Modelling website

Thomas Fiedler with an experiment

Foam and function

Dr Thomas Fiedler is driving the development of new-generation cellular materials with that are light, strong and multi-functional.

Read more

Career Summary

Biography

Dr Fiedler completed his Master studies in Mechanical Engineering at the University of Erlangen-Nuremberg (Germany) in 2004. He continued his academic career at the University of Aveiro (Portugal). After completing his PhD in December 2007 Dr Fiedler commenced working as a Postdoc at the University of Newcastle. In 2010 Dr Fiedler was awarded and APD Fellowship by the ARC.

Research Expertise

Dr Thomas Fiedler's Research Expertise are: Cellular Materials (Metals and Ceramics) and Composite Materials, Experimental and Computational Mechanics, Finite Element Methods, Lattice Monte Carlo Methods and Numerical Heat Transfer.

Teaching Expertise
Mech 2700 Mech 2450 GENG 1001 

Collaborations
Academic partners in Australia, Germany, Slovenia, Brazil, Malaysia, Spain and Portugal.

Industrial partners in Germany


Qualifications

  • PhD (Mechanical Engineering), Universidade de Aveiro - Portugal

Keywords

  • Cellular Materials
  • Composite Materials
  • Computational Mechanics
  • Experimental Mechanics
  • Finite Element Methods
  • Mechanical Engineering

Languages

  • English (Fluent)
  • German (Fluent)
  • Portuguese (Fluent)

Fields of Research

Code Description Percentage
091299 Materials Engineering not elsewhere classified 60
020499 Condensed Matter Physics not elsewhere classified 40

Professional Experience

UON Appointment

Title Organisation / Department
Senior Lecturer University of Newcastle
School of Engineering
Australia

Academic appointment

Dates Title Organisation / Department
1/09/2012 - 1/09/2013 Fellow

UoN Research Fellowship

University of Newcastle
School of Engineering
Australia
1/01/2012 - 1/12/2014 Fellow

UoN Research Fellowship

University of Newcastle
School of Engineering
Australia
1/01/2010 - 1/06/2013 Fellowship - APD University of Newcastle
School of Engineering
Australia

Awards

Research Award

Year Award
2006 'Investigation of Damage Evolution in Metallic Foams'
Ministry of Education and Science - Governo de Portugal
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Publications

For publications that are currently unpublished or in-press, details are shown in italics.


Book (1 outputs)

Year Citation Altmetrics Link
2008 Fiedler T, Numerical and Experimental Investigation of Hollow Sphere Structures in Sandwich Panels., Trans Tech Publications, Switzerland, 126 (2008)

Chapter (7 outputs)

Year Citation Altmetrics Link
2011 Fiedler T, Belova IV, Ochsner A, Murch GE, 'Lattice Monte Carlo analysis of thermal diffusion in multi-phase materials', Heat Transfer in Multi-Phase Materials, Springer, Heidelberg 275-300 (2011) [B1]
Citations Scopus - 1
Co-authors Graeme Murch, Irina Belova
2010 Hosseini SMH, Ochsner A, Merkel M, Fiedler T, 'Predicting the effective thermal conductivity of perforated hollow sphere structures (PHSS)', Current Trends in Chemical Engineering, Studium Press, New Delhi, India 131-151 (2010) [B1]
2010 Fiedler T, Belova IV, Ochsner A, Murch GE, 'A review on thermal Lattice Monte Carlo analysis', Current Trends in Chemical Engineering, Studium Press, New Delhi, India 105-130 (2010) [B1]
Co-authors Graeme Murch, Irina Belova
2009 Fiedler T, Ochsner A, 'Elastic-plastic properties: Simulation and experiment', Multifunctional Metallic Hollow Sphere Structures: Manufacturing, Properties and Application, Springer, Berlin 47-70 (2009) [B1]
DOI 10.1007/978-3-642-00491-9
2009 Ochsner A, Fiedler T, 'Geometrical properties of hollow sphere structures', Multifunctional Metallic Hollow Sphere Structures: Manufacturing, Properties and Application, Springer, Berlin 31-46 (2009) [B1]
DOI 10.1007/978-3-642-00491-9
2009 Vesenjak M, Fiedler T, Ren Z, Ochsner A, 'Dynamic behaviour of metallic hollow sphere structures', Multifunctional Metallic Hollow Sphere Structures: Manufacturing, Properties and Application, Springer, Berlin 137-158 (2009) [B1]
DOI 10.1007/978-3-642-00491-9
2008 Ochsner A, Fiedler T, 'Effective thermal properties of hollow-sphere structures: A finite element approach', Cellular and Porous Materials: Thermal Properties Simulation and Prediction, Wiley-VCH, Weinheim, Germany 31-71 (2008) [B1]
Show 4 more chapters

Journal article (74 outputs)

Year Citation Altmetrics Link
2015 Sulong MA, Taherishargh M, Belova IV, Murch GE, Fiedler T, 'On the mechanical anisotropy of the compressive properties of aluminium perlite syntactic foam', Computational Materials Science, 109 258-265 (2015)

Abstract A novel metallic syntactic foam is produced using a counter-gravity infiltration casting method. To this end, expanded perlite particles are combined with an aluminium al... [more]

Abstract A novel metallic syntactic foam is produced using a counter-gravity infiltration casting method. To this end, expanded perlite particles are combined with an aluminium alloy matrix. This enables close control of geometry at a relatively low production cost. The mechanical properties of the material are studied using finite element analysis. Numerical calculation models are generated directly from micro-computed tomography in order to capture their complex internal geometry. For verification purposes, numerical results are compared with experimental measurements of similar samples where available. But in contrast to experimental testing the numerical analysis is non-destructive and hence allows the repeated testing of samples in multiple loading directions. Thus, material anisotropy can be investigated for the first time. To this end, the quasi-elastic gradient, the 1% offset yield stress and the plateau stresses are obtained from virtual compression tests in three perpendicular directions (one coincides with the casting direction). Results indicate a weak anisotropy of the mechanical properties.

DOI 10.1016/j.commatsci.2015.07.038
Co-authors Irina Belova, Graeme Murch
2015 Fiedler T, Borovin¿ek M, Hokamoto K, Vesenjak M, 'High-performance thermal capacitors made by explosion forming', International Journal of Heat and Mass Transfer, 83 366-371 (2015)

This paper addresses the thermal testing of UniPore-paraffin composites for use as thermal capacitors. UniPore is a relatively new porous material with unidirectional pores formed... [more]

This paper addresses the thermal testing of UniPore-paraffin composites for use as thermal capacitors. UniPore is a relatively new porous material with unidirectional pores formed by the explosive fusion of multiple thin copper pipes filled with paraffin. The current study investigates the suitability of this composite for transient thermal energy storage. The application demands both high thermal diffusivity and a large specific energy storage capacity. These requirements are met by the highly conductive copper and the phase change material paraffin, respectively. Combined experimental and numerical analyses are conducted towards the determination of temperature stabilization performance. Furthermore, key geometric criteria for the design of optimum UniPore structures as thermal capacitors are identified.

DOI 10.1016/j.ijheatmasstransfer.2014.12.025
Citations Scopus - 2Web of Science - 1
2015 Taherishargh M, Sulong MA, Belova IV, Murch GE, Fiedler T, 'On the particle size effect in expanded perlite aluminium syntactic foam', Materials and Design, 66 294-303 (2015)

Packed beds of expanded perlite (EP) particles with three different size ranges (1-1.4, 2-2.8, and 4-5.6. mm) have been infiltrated with molten Al to produce EP/A356 Al syntactic ... [more]

Packed beds of expanded perlite (EP) particles with three different size ranges (1-1.4, 2-2.8, and 4-5.6. mm) have been infiltrated with molten Al to produce EP/A356 Al syntactic foam. A T6 heat treatment was applied to the foams. The effects of EP particle size on microstructural, geometrical, and mechanical properties of the foams were investigated. The EP particle size determines the number of cells across the sample diameter (7-25). It also influences the microstructural characteristics of the cell-wall alloy and the homogeneity of the cell-wall geometry. Enhanced microstructural characteristics and a greater geometrical homogeneity of the cell-wall in the case of smaller EP particles result in superior mechanical properties. The compressive deformation becomes more uniform by decreasing the EP particle size resulting in smoother and steeper stress-strain curves. As a result, these foams exhibit higher plateau stresses and improved energy absorption. The number of cells across the sample diameter does not have a significant effect on the mechanical properties of the samples considered.

DOI 10.1016/j.matdes.2014.10.073
Citations Scopus - 1
Co-authors Irina Belova, Graeme Murch
2015 Fiedler T, Taherishargh M, Krstulovic-Opara L, Vesenjak M, 'Dynamic compressive loading of expanded perlite/aluminum syntactic foam', Materials Science and Engineering A, 626 296-304 (2015)

This paper addresses the analysis of expanded perlite/aluminum (EP/A356) syntactic foams under dynamic compressive loading conditions. Experimental and numerical analysis are cond... [more]

This paper addresses the analysis of expanded perlite/aluminum (EP/A356) syntactic foams under dynamic compressive loading conditions. Experimental and numerical analysis are conducted in order to determine compressive stress-strain response, effective material properties and deformation mechanisms. Foam samples are manufactured by combining A356 aluminum alloy with expanded perlite particles that introduce 60-65% porosity. Under compressive loading these pores gradually collapse resulting in an approximately constant macroscopic stress level of the syntactic foam. Testing at different compression velocities shows that the expanded perlite particles increase the compression resistance at higher strain rates. The effective material properties of the syntactic foam increase both with density and loading velocity. Infrared (IR) thermal imaging and finite element analysis allowed the independent identification of the dominant deformation mechanism: single struts that are parallel to the loading direction buckle and trigger the formation of multiple collapse bands that are approximately perpendicular to the loading direction.

DOI 10.1016/j.msea.2014.12.032
Citations Scopus - 2Web of Science - 1
2015 Taherishargh M, Belova IV, Murch GE, Fiedler T, 'Pumice/aluminium syntactic foam', Materials Science and Engineering A, 635 102-108 (2015)

A novel filler material is introduced to produce high strength metal-matrix syntactic foam. Packed beds of pumice particles, a low-cost natural porous volcanic glass, with the siz... [more]

A novel filler material is introduced to produce high strength metal-matrix syntactic foam. Packed beds of pumice particles, a low-cost natural porous volcanic glass, with the size range of 2.8-4mm were infiltrated with molten aluminium alloy. The resulting syntactic foams were subjected to microstructural observations and chemical analysis. Furthermore, quasi-static compression testing was applied on heat treated samples. The material strength and the deformation mechanism under compressive loading of the pumice particles and foams were investigated. The results indicate that there is a limited chemical reaction between the particles and matrix. The pumice particles considerably enhance the strength of the foam and result in an average plateau stress of 68.25MPa and specific energy absorption of 24.8MJ/m3. Pumice particles show higher strength in the direction of tubular pores. The mechanical anisotropy of pumice particles is likely to cause a slight variation in the directional properties of the foams.

DOI 10.1016/j.msea.2015.03.061
Co-authors Irina Belova, Graeme Murch
2015 Boccardi E, Belova IV, Murch GE, Boccaccini AR, Fiedler T, 'Oxygen diffusion in marine-derived tissue engineering scaffolds', Journal of Materials Science: Materials in Medicine, 26 (2015)

This paper addresses the computation of the effective diffusivity in new bioactive glass (BG) based tissue engineering scaffolds. High diffusivities facilitate the supply of oxyge... [more]

This paper addresses the computation of the effective diffusivity in new bioactive glass (BG) based tissue engineering scaffolds. High diffusivities facilitate the supply of oxygen and nutrients to grown tissue as well as the rapid disposal of toxic waste products. The present study addresses required novel types of bone tissue engineering BG scaffolds that are derived from natural marine sponges. Using the foam replication method, the scaffold geometry is defined by the porous structure of Spongia Agaricina and Spongia Lamella. These sponges present the advantage of attaining scaffolds with higher mechanical properties (2¿4¿MPa) due to a decrease in porosity (68¿76¿%). The effective diffusivities of these structures are compared with that of conventional scaffolds based on polyurethane (PU) foam templates, characterised by high porosity (>90¿%) and lower mechanical properties (>0.05¿MPa). Both the spatial and directional variations of diffusivity are investigated. Furthermore, the effect of scaffold decomposition due to immersion in simulated body fluid (SBF) on the diffusivity is addressed. Scaffolds based on natural marine sponges are characterised by lower oxygen diffusivity due to their lower porosity compared with the PU replica foams, which should enable the best oxygen supply to newly formed bone according the numerical results. The oxygen diffusivity of these new BG scaffolds increases over time as a consequence of the degradation in SBF.

DOI 10.1007/s10856-015-5531-2
Co-authors Irina Belova, Graeme Murch
2015 Fiedler T, Belova IV, Murch GE, 'On the thermal properties of expanded perlite - Metallic syntactic foam', International Journal of Heat and Mass Transfer, 90 1009-1014 (2015)

Abstract This paper addresses the thermal properties of syntactic metal foam made by embedding expanded perlite particles in A356 aluminium matrix. Lattice Monte Carlo (LMC) analy... [more]

Abstract This paper addresses the thermal properties of syntactic metal foam made by embedding expanded perlite particles in A356 aluminium matrix. Lattice Monte Carlo (LMC) analyses are conducted to determine the thermal characterisation of the foam. For increased accuracy, the complex geometry of the metallic foam is captured by micro-computed tomography imaging. Using the resulting detailed geometric models, the effective thermal conductivity tensor is computed with possible thermal anisotropy taken into consideration. The numerical results are verified by comparison with experimental measurements. To this end, an improved steady-state method is used to correct for thermal contact resistance. Furthermore, the effective heat capacity, average density and thermal diffusivity of perlite - metal syntactic foam are determined.

DOI 10.1016/j.ijheatmasstransfer.2015.07.049
Co-authors Irina Belova, Graeme Murch
2014 Fiedler T, Sulong MA, Vesenjak M, Higa Y, Belova IV, Oechsner A, Murch GE, 'Determination of the thermal conductivity of periodic APM foam models', INTERNATIONAL JOURNAL OF HEAT AND MASS TRANSFER, 73 826-833 (2014) [C1]
DOI 10.1016/j.ijheatmasstransfer.2014.02.056
Citations Scopus - 4Web of Science - 3
Co-authors Graeme Murch, Irina Belova
2014 Fiedler T, White N, Dahari M, Hooman K, 'On the electrical and thermal contact resistance of metal foam', International Journal of Heat and Mass Transfer, 72 565-571 (2014) [C1]

This paper addresses the electrical and thermal contact resistance in metal foam-graphite assemblies considered for use in next generation air-cooled fuel cells as replacements of... [more]

This paper addresses the electrical and thermal contact resistance in metal foam-graphite assemblies considered for use in next generation air-cooled fuel cells as replacements of currently available water-cooled ones. Their successful application requires minimization of thermal and electrical contact resistance between components. The current study investigates the evolution of both resistances with increasing compressive force between metallic foam and graphite plates. Reducing these contact resistances through compressive force instead of brazing significantly reduces the manufacturing cost. Our results show that both electrical and thermal resistances monotonically decrease with increasing compressive force when moving from no compressive force to a slight one about 100 N (corresponding to a compressive stress of 0.01 MPa). Interestingly, compared with the thermal contact resistance, the electrical contact resistance shows more sensitivity to compressive force within this range of force. Furthermore, it has been noted that increases in compressive force beyond 300 N (i.e. 0.03 MPa) decrease the resistances only marginally. Electrical contact resistance was found to govern the total resistance of the metal foam-graphite assembly since electric bulk resistances are several orders of magnitude lower. Similar observations are made for thermal resistance where the minimum contact resistance exceeds the thermal resistance of the foam in our experiments. © 2014 Elsevier Ltd. All rights reserved.

DOI 10.1016/j.ijheatmasstransfer.2014.01.045
Citations Scopus - 7Web of Science - 5
2014 Rawson A, Kisi E, Sugo H, Fiedler T, 'Effective conductivity of Cu-Fe and Sn-Al miscibility gap alloys', International Journal of Heat and Mass Transfer, 77 395-405 (2014) [C1]

The effective thermal conductivity of Cu-Fe and Sn-Al miscibility gap alloys over a range of temperatures and volume fractions was determined using the Lattice Monte Carlo method.... [more]

The effective thermal conductivity of Cu-Fe and Sn-Al miscibility gap alloys over a range of temperatures and volume fractions was determined using the Lattice Monte Carlo method. The Cu-Fe system was found to have an effective conductivity predictable by the Maxwell-Eucken model. The Sn-Al system was not consistent with any empirical model analysed. The microstructures of physical samples were approximated using a random growth algorithm calibrated to electron or optical microscope images. Charts of effective conductivity against temperature for a number of volume fractions are presented for the two alloys. It was determined that the Cu-Fe alloy would benefit from an interstice type microstructure and the Sn-Al would be more efficient with a hard spheres type microstructure. More general conclusions are drawn about the efficiency of the two observed microstructures. © 2014 Elsevier Ltd. All rights reserved.

DOI 10.1016/j.ijheatmasstransfer.2014.05.024
Citations Scopus - 1Web of Science - 2
Co-authors Heber Sugo, Erich Kisi
2014 Fiedler T, Fisher M, Roether JA, Belova IV, Samtleben T, Bernthaler T, et al., 'Strengthening mechanism of PDLLA coated titania foam', Mechanics of Materials, 69 35-40 (2014) [C1]

This paper addresses the numerical analysis of the mechanical properties of titania foam intended for use in tissue engineering scaffolds. Special focus is given to a PDLLA coatin... [more]

This paper addresses the numerical analysis of the mechanical properties of titania foam intended for use in tissue engineering scaffolds. Special focus is given to a PDLLA coating that has been shown to distinctly increase the mechanical strength of the scaffold. Micro-computed tomography (µCT) data of a real scaffold are obtained and converted into numerical calculation models. Finite element simulations are performed alternately with and without the PDLLA coating. In addition, a strut model containing a single micro-crack is analysed. Numerical results indicate that filling the crack with PDLLA significantly increases the strength of the strut by attenuating stress concentrations. © 2013 Elsevier Ltd. All rights reserved.

DOI 10.1016/j.mechmat.2013.09.007
Citations Scopus - 1Web of Science - 1
Co-authors Graeme Murch, Irina Belova
2014 Taherishargh M, Belova IV, Murch GE, Fiedler T, 'On the mechanical properties of heat-treated expanded perlite-aluminium syntactic foam', MATERIALS & DESIGN, 63 375-383 (2014) [C1]
DOI 10.1016/j.matdes.2014.06.019
Citations Scopus - 6Web of Science - 4
Co-authors Graeme Murch, Irina Belova
2014 Sulong MA, Vesenjak M, Belova IV, Murch GE, Fiedler T, 'Compressive properties of Advanced Pore Morphology (APM) foam elements', MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING, 607 498-504 (2014) [C1]
DOI 10.1016/j.msea.2014.04.037
Citations Scopus - 4Web of Science - 3
Co-authors Graeme Murch, Irina Belova
2014 Taherishargh M, Belova IV, Murch GE, Fiedler T, 'Low-density expanded perlite-aluminium syntactic foam', Materials Science and Engineering A, 604 127-134 (2014) [C1]

This paper addresses an innovative syntactic foam (SF) formed by counter-gravity infiltration of a packed bed of low-cost expanded perlite (EP) particles with molten A356 aluminiu... [more]

This paper addresses an innovative syntactic foam (SF) formed by counter-gravity infiltration of a packed bed of low-cost expanded perlite (EP) particles with molten A356 aluminium. The uniform distribution of EP particles in foams causes an even density throughout the height. Due to the low density (~0.18g/cm3) of EP, the average density of these foams is only 1.05g/cm3 which is considerably lower than most studied SFs. Owing to the high porosity of the filler material (~94%), the total porosity of the new foam reaches 61%. Microstructural observations reveal no sign of damage or unintended EP particle infiltration. EP shows a good wettability whilst essentially no reaction occurs at the EP-metal interface. Under compression, EP/A356 syntactic foam shows stress-strain curves consisting of elastic, plateau and densification regions. On account of its consistent plateau stress (average value 30.8MPa), large densification strain (almost 60%), and high energy absorption efficiency (88%) EP/A356 syntactic foam is an effective energy absorber. © 2014 Elsevier B.V.

DOI 10.1016/j.msea.2014.03.003
Citations Scopus - 6Web of Science - 5
Co-authors Graeme Murch, Irina Belova
2014 Fiedler T, Sulong MA, Mathier V, Belova IV, Younger C, Murch GE, 'Mechanical properties of aluminium foam derived from infiltration casting of salt dough', Computational Materials Science, 81 246-248 (2014) [C1]

This paper addresses the mechanical properties of Corevo® aluminium foam. The effective Young's modulus, Poisson's ratio, and material yield stress are determined. To this end, s... [more]

This paper addresses the mechanical properties of Corevo® aluminium foam. The effective Young's modulus, Poisson's ratio, and material yield stress are determined. To this end, samples are tested using uni-axial compressive testing. In addition, micro-computed tomography data of the complex material geometry are obtained and converted into finite element calculation models. The numerical analysis further enables the testing of mechanical material anisotropy and plastic deformation within the material's meso-structure. © 2013 Elsevier B.V. All rights reserved.

DOI 10.1016/j.commatsci.2013.08.021
Citations Scopus - 1Web of Science - 1
Co-authors Irina Belova, Graeme Murch
2014 Fiedler T, Belova IV, Rawson A, Murch GE, 'Optimized Lattice Monte Carlo for thermal analysis of composites', Computational Materials Science, 95 207-212 (2014) [C1]

This paper addresses the use of the Lattice Monte Carlo method for the thermal characterization of composite materials. An optimized approach that minimizes computational time is ... [more]

This paper addresses the use of the Lattice Monte Carlo method for the thermal characterization of composite materials. An optimized approach that minimizes computational time is presented. The key aspect of the approach is the avoidance of the need to model the local thermal inertia. A combined finite element and Lattice Monte Carlo analysis is conducted on a model composite for a formal verification of the effective thermal diffusivity and conductivity calculated by the optimized Lattice Monte Carlo method. The effective thermal inertia is calculated separately by making use of the energy conservation law. © 2014 Elsevier Ltd. All rights reserved.

DOI 10.1016/j.commatsci.2014.07.029
Citations Scopus - 2Web of Science - 2
Co-authors Graeme Murch, Irina Belova
2014 Fiedler T, Belova IV, Murch GE, Poologasundarampillai G, Jones JR, Roether JA, Boccaccini AR, 'A comparative study of oxygen diffusion in tissue engineering scaffolds', Journal of Materials Science: Materials in Medicine, 25 2573-2578 (2014) [C1]

Tissue engineering scaffolds are designed to support tissue self-healing within physiological environments by promoting the attachment, growth and differentiation of relevant cell... [more]

Tissue engineering scaffolds are designed to support tissue self-healing within physiological environments by promoting the attachment, growth and differentiation of relevant cells. Newly formed tissue must be supplied with sufficient levels of oxygen to prevent necrosis. Oxygen diffusion is the major transport mechanism before vascularization is completed and oxygen is predominantly supplied via blood vessels. The present study compares different designs for scaffolds in the context of their oxygen diffusion ability. In all cases, oxygen diffusion is confined to the scaffold pores that are assumed to be completely occupied by newly formed tissue. The solid phase of the scaffolds acts as diffusion barrier that locally inhibits oxygen diffusion, i.e. no oxygen passes through the scaffold material. As a result, the oxygen diffusivity is determined by the scaffold porosity and pore architecture. Lattice Monte Carlo simulations are performed to compare the normalized oxygen diffusivities in scaffolds obtained by the foam replication (FR) method, robocasting and sol¿gel foaming. Scaffolds made by the FR method were found to have the highest oxygen diffusivity due to their high porosity and interconnected pores. These structures enable the best oxygen supply for newly formed tissue among the scaffold types considered according to the present numerical predictions.

DOI 10.1007/s10856-014-5264-7
Citations Scopus - 3Web of Science - 2
Co-authors Graeme Murch, Irina Belova
2013 Vesenjak M, Borovin¿ek M, Fiedler T, Higa Y, Ren Z, 'Structural characterisation of advanced pore morphology (APM) foam elements', Materials Letters, 110 201-203 (2013) [C1]
DOI 10.1016/j.matlet.2013.08.026
Citations Scopus - 8Web of Science - 5
2013 Fiedler T, Richards HS, Belova IV, Oechsner A, Murch GE, 'Experimental analysis on the thermal anisotropy of syntactic hollow sphere structures', EXPERIMENTAL THERMAL AND FLUID SCIENCE, 44 637-641 (2013) [C1]
DOI 10.1016/j.expthermflusci.2012.09.003
Citations Scopus - 4Web of Science - 4
Co-authors Irina Belova, Graeme Murch
2013 Veyhl C, Fiedler T, Jehring U, Andersen O, Bernthaler T, Belova IV, Murch GE, 'On the mechanical properties of sintered metallic fibre structures', MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING, 562 83-88 (2013) [C1]
DOI 10.1016/j.msea.2012.11.034
Citations Scopus - 5Web of Science - 4
Co-authors Irina Belova, Graeme Murch
2013 Fiedler T, Veyhl C, Belova IV, Bernthaler T, Heine B, Murch GE, 'Mechanical properties and micro-deformation of sintered metallic hollow sphere structure', COMPUTATIONAL MATERIALS SCIENCE, 74 143-147 (2013) [C1]
DOI 10.1016/j.commatsci.2013.03.010
Citations Scopus - 1Web of Science - 1
Co-authors Irina Belova, Graeme Murch
2013 Fiedler T, Loosemore J, Belova IV, Murch GE, 'A comparative study of heat sink composites for temperature stabilisation', APPLIED THERMAL ENGINEERING, 58 314-320 (2013) [C1]
DOI 10.1016/j.applthermaleng.2013.04.022
Citations Scopus - 1Web of Science - 1
Co-authors Irina Belova, Graeme Murch
2012 Fiedler T, Belova IV, Murch GE, 'Critical analysis of the experimental determination of the thermal resistance of metal foams', International Journal of Heat and Mass Transfer, 55 4415-4420 (2012) [C1]
Citations Scopus - 6Web of Science - 5
Co-authors Irina Belova, Graeme Murch
2012 Veyhl C, Fiedler T, Andersen O, Meinert J, Bernthaler T, Belova IV, Murch GE, 'On the thermal conductivity of sintered metallic fibre structures', International Journal of Heat and Mass Transfer, 55 2440-2448 (2012) [C1]
Citations Scopus - 14Web of Science - 15
Co-authors Irina Belova, Graeme Murch
2012 Vesenjak M, Veyhl C, Fiedler T, 'Analysis of anisotropy and strain rate sensitivity of open-cell metal foam', Materials Science and Engineering A-Structural Materials: Properties Microstructure and Processing, 541 105-109 (2012) [C1]
DOI 10.1016/j.msea.2012.02.010
Citations Scopus - 19Web of Science - 18
2012 Fiedler T, Belova IV, Murch GE, Roether JA, Boccaccini AR, 'Tailoring elastic properties of PLGA/TiO2 biomaterials', Computational Materials Science, 61 283-286 (2012) [C1]
Citations Scopus - 4Web of Science - 4
Co-authors Graeme Murch, Irina Belova
2012 Fiedler T, Belova IV, Murch GE, 'u-CT-based finite element analysis on imperfections in open-celled metal foam: Mechanical properties', Scripta Materialia, 67 455-458 (2012) [C1]
Citations Scopus - 5Web of Science - 4
Co-authors Graeme Murch, Irina Belova
2012 Fiedler T, Veyhl C, Belova IV, Tane M, Nakajima H, Bernthaler T, et al., 'On the anisotropy of lotus-type porous copper', Advanced Engineering Materials, 14 144-152 (2012) [C1]
DOI 10.1002/adem.201100205
Citations Scopus - 6Web of Science - 4
Co-authors Graeme Murch, Irina Belova
2012 Belova IV, Fiedler T, Kulkarni N, Murch GE, 'The Harrison diffusion kinetics regimes in solute grain boundary diffusion', Philosophical Magazine, 92 1748-1763 (2012) [C1]
Citations Scopus - 2Web of Science - 3
Co-authors Irina Belova, Graeme Murch
2012 Fiedler T, Belova IV, Ochsner A, Murch GE, 'A lattice Monte Carlo analysis on chemical reaction with moving boundary', Computational Thermal Sciences, 4 131-135 (2012) [C1]
Co-authors Graeme Murch, Irina Belova
2012 Veyhl C, Fiedler T, Herzig T, Ochsner A, Bernthaler T, Belova IV, Murch GE, 'Thermal conductivity computations of sintered hollow sphere structures', Metals, 2 113-121 (2012) [C1]
Citations Web of Science - 2
Co-authors Graeme Murch, Irina Belova
2011 Hosseini SMH, Ochsner A, Fiedler T, 'Numerical investigation of the initial yield surface of perforated hollow sphere structures (PHSS) in a primitive cubic pattern', Finite Elements in Analysis and Design, 47 804-811 (2011) [C1]
DOI 10.1016/j.finel.2011.02.011
Citations Scopus - 5Web of Science - 6
2011 Veyhl C, Belova IV, Murch GE, Fiedler T, 'Finite element analysis of the mechanical properties of cellular aluminium based on micro-computed tomography', Materials Science and Engineering A: Structural Materials Properties Microstructure and Processing, 528 4550-4555 (2011) [C1]
DOI 10.1016/j.msea.2011.02.031
Citations Scopus - 23Web of Science - 20
Co-authors Irina Belova, Graeme Murch
2011 Fiedler T, Belova IV, Murch GE, 'Numerical simulation of Knudsen diffusion in metallic foam', Computational Materials Science, 50 1795-1799 (2011) [C1]
DOI 10.1016/j.commatsci.2011.01.017
Citations Scopus - 3Web of Science - 3
Co-authors Graeme Murch, Irina Belova
2011 Fiedler T, Belova IV, Broxtermann S, Murch GE, 'A thermal analysis on self-propagating high temperature synthesis in joining technology', Computational Materials Science, 53 251-257 (2011) [C1]
DOI 10.1016/j.commatsci.2011.08.015
Citations Scopus - 4Web of Science - 3
Co-authors Irina Belova, Graeme Murch
2011 Fiedler T, Belova IV, Murch GE, 'A comparative study of Knudsen diffusion in cellular metals', Computational Materials Science, 50 2666-2670 (2011) [C1]
DOI 10.1016/j.commatsci.2011.04.016
Citations Scopus - 2Web of Science - 2
Co-authors Irina Belova, Graeme Murch
2011 Veyhl C, Belova IV, Murch GE, Ochsner A, Fiedler T, 'Thermal analysis of aluminium foam based on microcomputed tomography', Materialwissenschaft und Werkstofftechnik, 42 350-355 (2011) [C1]
DOI 10.1002/mawe.201100787
Citations Scopus - 6Web of Science - 8
Co-authors Irina Belova, Graeme Murch
2011 Belova IV, Veyhl C, Fiedler T, Murch GE, 'Analysis of anisotropic behaviour of thermal conductivity in cellular metals', Scripta Materialia, 65 436-439 (2011) [C1]
DOI 10.1016/j.scriptamat.2011.05.029
Citations Scopus - 10Web of Science - 9
Co-authors Irina Belova, Graeme Murch
2010 Fiedler T, Belova IV, Murch GE, 'Lattice Monte Carlo analyses of thermal diffusion in laminar flow', Proceedings of the World Academy of Science, Engineering and Technology, 63 306-310 (2010) [C1]
Co-authors Irina Belova, Graeme Murch
2010 Fiedler T, Belova IV, Murch GE, Öchsner A, 'Recent Advances in the Prediction of the Thermal Properties of Metallic Hollow Sphere Structures 73-110 (2010)
DOI 10.1002/9783527632312.ch3
Co-authors Irina Belova, Graeme Murch
2010 Fiedler T, Ochsner A, Gracio J, 'Numerical investigations on the mechanical properties of adhesively bonded hollow sphere structures', Journal of Composite Materials, 44 1165-1178 (2010) [C1]
DOI 10.1177/0021998309348409
Citations Scopus - 6Web of Science - 6
2010 Veyhl C, Belova IV, Murch GE, Ochsner A, Fiedler T, 'On the mesh dependence of non-linear mechanical finite element analysis', Finite Elements in Analysis and Design, 46 371-378 (2010) [C1]
DOI 10.1016/j.finel.2009.12.003
Citations Scopus - 16Web of Science - 16
Co-authors Irina Belova, Graeme Murch
2010 Fiedler T, Belova IV, Murch GE, 'A Lattice Monte Carlo analysis on coupled reaction and mass diffusion', Computational Materials Science, 47 826-831 (2010) [C1]
DOI 10.1016/j.commatsci.2009.11.010
Citations Scopus - 4Web of Science - 1
Co-authors Irina Belova, Graeme Murch
2010 Fiedler T, Belova IV, Murch GE, 'Theoretical and lattice Monte Carlo analyses on thermal conduction in cellular metals', Computational Materials Science, 50 503-509 (2010) [C1]
DOI 10.1016/j.commatsci.2010.09.011
Citations Scopus - 21Web of Science - 22
Co-authors Graeme Murch, Irina Belova
2010 Fiedler T, Kim H-S, Belova IV, Sloan SW, Murch GE, Ochsner A, 'Elastic finite element analysis on cross-sections of random hollow sphere structures', Materialwissenschaft und Werkstofftechnik, 41 250-256 (2010) [C1]
DOI 10.1002/mawe.201000593
Citations Scopus - 3Web of Science - 2
Co-authors Graeme Murch, Irina Belova, Scott Sloan, Ho-Sung Kim
2010 Farnsworth J, Murch GE, Belova IV, Ochsner A, Fiedler T, 'A lattice monte carlo analysis on thermal diffusion in syntactic hollow-sphere structures', Materialwissenschaft und Werkstofftechnik, 41 283-286 (2010) [C1]
DOI 10.1002/mawe.201000598
Citations Scopus - 3Web of Science - 3
Co-authors Irina Belova, Graeme Murch
2009 Vesenjak M, Ren Z, Fiedler T, Ochsner A, 'Impact behavior of composite hollow sphere structures', Journal of Composite Materials, 43 2491-2505 (2009) [C1]
DOI 10.1177/0021998309094970
Citations Scopus - 9Web of Science - 8
2009 Fiedler T, Loffler R, Bernthaler T, Winkler R, Belova IV, Murch GE, Ochsner A, 'Numerical analyses of the thermal conductivity of random hollow sphere structures', Materials Letters, 63 1125-1127 (2009) [C1]
DOI 10.1016/j.matlet.2008.10.030
Citations Scopus - 17Web of Science - 17
Co-authors Graeme Murch, Irina Belova
2009 Fiedler T, Belova IV, Ochsner A, Murch GE, 'Non-linear calculations of transient thermal conduction in composite materials', Computational Materials Science, 45 434-438 (2009) [C1]
DOI 10.1016/j.commatsci.2008.10.021
Citations Scopus - 9Web of Science - 6
Co-authors Graeme Murch, Irina Belova
2009 Fiedler T, Hosseini SMH, Belova IV, Murch GE, Ochsner A, 'A refined finite element analysis on the thermal conductivity of perforated hollow sphere structures', Computational Materials Science, 47 314-319 (2009) [C1]
DOI 10.1016/j.commatsci.2009.08.007
Citations Scopus - 14Web of Science - 13
Co-authors Graeme Murch, Irina Belova
2009 Fiedler T, Solorzano E, Garcia-Moreno F, Ochsner A, Belova IV, Murch GE, 'Computed tomography based finite element analysis of the thermal properties of cellular aluminium', Materialwissenschaft und Werkstofftechnik, 40 139-143 (2009) [C1]
DOI 10.1002/mawe.200900419
Citations Scopus - 17Web of Science - 16
Co-authors Irina Belova, Graeme Murch
2009 Belova IV, Murch GE, Fiedler T, Ochsner A, 'Lattice-based walks and the Monte Carlo method for addressing mass, thermal and elasticity problems', Diffusion and Defect Data: Pt A. Defect and Diffusion Forum, 283-286 13-23 (2009) [C1]
DOI 10.4028/www.scientific.net/ddf.283-286.13
Citations Scopus - 6Web of Science - 5
Co-authors Graeme Murch, Irina Belova
2009 Fiedler T, Solorzano E, Garcia-Moreno F, Ochsner A, Belova IV, Murch GE, 'Lattice Monte Carlo and experimental analyses of the thermal conductivity of random-shaped cellular aluminum', Advanced Engineering Materials, 11 843-847 (2009) [C1]
DOI 10.1002/adem.200900132
Citations Scopus - 18Web of Science - 15
Co-authors Graeme Murch, Irina Belova
2008 Fiedler T, Ochsner A, 'On the anisotropy of adhesively bonded metallic hollow sphere structures', Scripta Materialia, 58 695-698 (2008) [C1]
DOI 10.1016/j.scriptamat.2007.12.005
Citations Scopus - 26Web of Science - 28
2008 Fiedler T, Ochsner A, Belova IV, Murch GE, 'Recent advances in the prediction of the thermal properties of syntactic metallic hollow sphere structures', Advanced Engineering Materials, 10 361-365 (2008) [C1]
DOI 10.1002/adem.200700335
Citations Scopus - 16Web of Science - 14
Co-authors Irina Belova, Graeme Murch
2008 Fiedler T, Solorzano E, Ochsner A, 'Numerical and experimental analysis of the thermal conductivity of metallic hollow sphere structures', Materials Letters, 62 1204-1207 (2008) [C1]
DOI 10.1016/j.matlet.2007.08.050
Citations Scopus - 28Web of Science - 30
2008 Fiedler T, Ochsner A, 'Experimental analysis of the flexural properties of sandwich panels with cellular core materials', Materialwissenschaft und Werkstofftechnik, 39 121-124 (2008) [C1]
DOI 10.1002/mawe.200700269
Citations Scopus - 3Web of Science - 2
2008 Belova IV, Murch GE, Fiedler T, Ochsner A, 'The lattice Monte Carlo method for solving phenomenological mass and thermal diffusion problems', Diffusion and Defect Data. Pt A Defect and Diffusion Forum, 279 13-22 (2008) [C1]
DOI 10.4028/www.scientific.net/DDF.279.13
Citations Scopus - 9
Co-authors Irina Belova, Graeme Murch
2008 Fiedler T, Ochsner A, Belova IV, Murch GE, 'Thermal conductivity enhancement of compact heat sinks using cellular metals', Diffusion and Defect Data. Pt A: Defect and Diffusion Forum, 273-276 222-226 (2008) [C1]
DOI 10.4028/www.scientific.net/DDF.273-276.222
Citations Scopus - 15Web of Science - 14
Co-authors Irina Belova, Graeme Murch
2008 Fiedler T, Ochsner A, Belova IV, Murch GE, 'Calculations of the effective thermal conductivity in a model of syntactic metallic hollow sphere structures using a lattice Monte Carlo method', Diffusion and Defect Data. Pt A: Defect and Diffusion Forum, 273-276 216-221 (2008) [C1]
DOI 10.4028/www.scientific.net/DDF.273-276.216
Citations Scopus - 11Web of Science - 9
Co-authors Irina Belova, Graeme Murch
2007 Fiedler T, Ochsner A, 'Finite element analysis of the temperature dependent conductivity of metallic hollow sphere structures', The International Journal of Multiphysics, 1 283-289 (2007) [C1]
DOI 10.1260/175095407782219229
2007 Fiedler T, Bingel G, Ochsner A, Kuhn G, 'Numerische analyse des Leichtbaupotenzialz von metallischen Hohlkugelstrukturen', Konstruktion, 1-2 67-71 (2007) [C3]
2007 Belova IV, Murch GE, Fiedler T, Oechsner A, 'The Lattice Monte Carlo Method for Solving Phenomenological Mass and Heat Transport Problems', Diffusion Fundamentals, 4 15.1-15.23 (2007) [C1]
Co-authors Graeme Murch, Irina Belova
2007 Fielder T, Ochsner A, Muthubandara NU, Belova IV, Murch GE, 'Calculation of the Effective Thermal Conductivity in Composites using Finite Element and Monte Carlo Methods', Materials Science Forum, 553 51-56 (2007) [C1]
DOI 10.4028/www.scientific.net/MSF.553.51
Citations Scopus - 13Web of Science - 10
Co-authors Graeme Murch, Irina Belova
2007 Fiedler T, Ochsner A, Gracio J, 'Uniaxial elasto-plastic behaviour of adhesively bonded hollow sphere structures (HSS): numerical simulations and experiments', Materials Science Forum, 539-543 1874-1879 (2007) [C1]
DOI 10.4028/www.scientific.net/MSF.539-543.1874
2007 Fiedler T, Ochsner A, 'Influence of the morphology of joining on the heat transfer properties of periodic metal hollow-sphere-structure', Materials Science Forum, 553 45-50 (2007) [C1]
DOI 10.4028/www.scientific.net/MSF.553.45
2007 Pesetskaya E, Fiedler T, Ochsner A, 'Two different approaches for the effective conductivity investigation of 2D porous materials with temperature dependent material properties', Materials Science Forum, 553 118-123 (2007) [C1]
DOI 10.4028/www.scientific.net/MSF.553.118
2006 Fiedler T, Sturm B, Ochsner A, Gracio J, Kuhn G, 'Modelling the mechanical behaviour of adhesively bonded and sintered hollow-sphere structures', Mechanics of Materials, 42 559-570 (2006) [C1]
DOI 10.1007/s11029-006-0067-7
2006 Fiedler T, Pesetskaya E, Ochsner A, Gracio J, 'Calculations of the thermal conductivity of porous materials', Materials Science Forum, 514-516 754-758 (2006) [C1]
DOI 10.4028/www.scientific.net/MSF.514-516.754
2006 Fiedler T, Ochsner A, Gracio J, 'The uniaxial strain test - a simple method for the characterisation of porous materials', Structural Engineering and Mechanics, 22 17-32 (2006) [C1]
2006 Ochsner A, Fiedler T, Gracio J, Kuhn G, 'Experimental techniques for the investigation of the elasto-plastic transition zone of foamed materials', Advanced Engineering Materials, 8 884-889 (2006) [C1]
DOI 10.1002/adem.200600073
2005 Fiedler T, Ochsner A, Gracio J, Kuhn G, 'Structure modelling of the mechanical behaviour of regular shaped cellular solids: open-cell structures', Mechanics of Materials, 41 405-422 (2005) [C1]
DOI 10.1007/s11029-005-0054-4
2005 Fiedler T, Pesetskaya E, Ochsner A, Gracio J, 'Numerical and analytical calculation of the orthotropic heat transfer properties of fibre reinforced materials', Materialwissenschaft und Werkstofftechnik, 36 602-607 (2005) [C1]
DOI 10.1002/mawe.200500905
2005 Ochsner A, Fiedler T, Gracio J, 'Characterisation of the elasto-plastic behaviour of cellular materials: axial compression test', Applied Computing Engineering, - (2005) [C1]
Show 71 more journal articles

Conference (13 outputs)

Year Citation Altmetrics Link
2014 Sulong MA, Mathier V, Fiedler T, Belova IV, Murch GE, 'Compressive properties of corevo® foam under uni-axial loading based on experimental and numerical analysis', Applied Mechanics and Materials (2014) [E1]

This paper reports on an investigation of the compressive properties of Corevo® foam. Corevo® foam is a cellular metal manufactured by the infiltration casting of salt dough wit... [more]

This paper reports on an investigation of the compressive properties of Corevo® foam. Corevo® foam is a cellular metal manufactured by the infiltration casting of salt dough with aluminium. Corevo® foam samples with different porosities are tested by using quasi-static compression loading. Their mechanical properties (i. e.: effective Young's modulus, Poisson's ratio, initial yield stress and material yield stress) are then compared to reveal the importance of the density difference. In addition, three-dimensional finite element analysis is performed on models generated from micro-computed tomography (µCT). The results of two different pore sizes are obtained and compared in the scope of this work. These numerical results are verified by comparison with the experimental analysis. Sound agreement is found. Numerical analysis in this work also includes the investigation of the mechanical material anisotropy and plastic deformation. © (2014) Trans Tech Publications, Switzerland.

DOI 10.4028/www.scientific.net/AMM.597.121
Co-authors Irina Belova, Graeme Murch
2014 Fiedler T, Rawson AJ, Sugo H, Kisi E, 'Thermal capacitors made from miscibility gap alloys (MGAs)', WIT Transactions on Ecology and the Environment (2014)

The current paper addresses the thermal characterisation of Miscibility Gap Alloys (MGAs). These novel materials combine two immiscible metallic phases with different melting temp... [more]

The current paper addresses the thermal characterisation of Miscibility Gap Alloys (MGAs). These novel materials combine two immiscible metallic phases with different melting temperatures. The fusible phase (i.e. the phase with a lower melting temperature) acts as a phase change material that stores latent heat (in addition to sensible heat) thus optimising energy storage capacity. The second phase forms an enclosure and prevents the leakage of liquid material. Due to the high inherent thermal conductivity of metals, MGAs exhibit excellent thermal conduction in comparison to traditional phase change materials such as hydrate salts or paraffin. The combination of high energy storage and fast heat transfer makes MGA uniquely suited for use as thermal capacitors in applications like space heating, concentrated power generation or temperature stabilisation of sensitive equipment. The current paper determines the thermal properties of MGAs using Lattice Monte Carlo analysis combined with micro-computed tomography imaging.

DOI 10.2495/ESUS140411
Co-authors Heber Sugo, Erich Kisi
2011 Wang M, Mignone PJ, Riley DP, Franks GV, Fiedler T, Murch GE, 'Electronic poster: A massively parallel Lattice Monte Carlo algorithm in CUDA for thermal conduction simulations', Proceedings of the 2011 companion on High Performance Computing Networking, Storage and Analysis Companion, Seattle, WA (2011) [E1]
DOI 10.1145/2148600.2148648
Co-authors Graeme Murch
2011 Belova IV, Murch GE, Fiedler T, 'The Harrison diffusion kinetics regimes in grain boundary diffusion: Lattice Monte Carlo Modelling of the effect of segregation', Defect and Diffusion Forum Series, Moscow, Russia (2011) [E1]
DOI 10.4028/www.scientific.net/DDF.309-310.9
Citations Scopus - 2Web of Science - 2
Co-authors Graeme Murch, Irina Belova
2010 Murch GE, Belova IV, Fiedler T, 'Full delineation of Harrison's diffusion kinetics regimes for grain boundary diffusion: A Monte Carlo Study', TMS Annual Meeting. Final Program, Washington, DC (2010) [E3]
Co-authors Graeme Murch, Irina Belova
2010 Fiedler T, Veyhl C, Belova IV, Murch GE, 'Numerical simulation of thermal management with heat sink composites', Proceedings - 12th IEEE Intersociety Conference on Thermal and Thermomechanical Phenomena in Electronic Systems, ITherm 2010, Las Vegas, NV (2010) [E1]
DOI 10.1109/ITHERM.2010.5501427
Co-authors Irina Belova, Graeme Murch
2010 Fiedler T, Murch GE, Belova IV, 'Solving complex thermal and mass transport problems with the Lattice Monte Carlo method', Materials Science Forum, Carins, Australia (2010) [E1]
DOI 10.4028/www.scientific.net/MSF.654-656.1476
Citations Scopus - 5Web of Science - 4
Co-authors Graeme Murch, Irina Belova
2010 Fiedler T, Murch GE, Bernthaler T, Belova IV, 'Numerical characterization of anisotropic heat sink composites', Materials Science Forum, Cairns, Australia (2010) [E1]
DOI 10.4028/www.scientific.net/MSF.654-656.1500
Citations Scopus - 3Web of Science - 3
Co-authors Graeme Murch, Irina Belova
2010 Hosseini SMH, Ochsner A, Fiedler T, 'Numerical prediction of the effective thermal conductivity of open- and closed-cell foam structures', Diffusion in Solids and Liquids V: Proceedings of the 5th International Conference on Diffusion in Solids and Liquids (DSL-2009), Grand Hotel Palazzo Carpegna, Rome Italy (2010) [E1]
Citations Scopus - 4
2010 Fiedler T, Belova IV, Ochsner A, Murch GE, 'A lattice Monte Carlo analysis of thermal transport in phase change materials', Diffusion in Solids and Liquids V: Proceedings of the 5th International Conference on Diffusion in Solids and Liquids (DSL-2009), Grand Hotel Palazzo Carpegna, Rome Italy (2010) [E1]
Citations Scopus - 3Web of Science - 2
Co-authors Irina Belova, Graeme Murch
2010 Belova IV, Murch GE, Fiedler T, 'Parametric analysis of the classification of Harrison kinetics regimes in grain boundary diffusion', Diffusion in Solids and Liquids V: Proceedings of the 5th International Conference on Diffusion in Solids and Liquids (DSL-2009), Grand Hotel Palazzo Carpegna, Rome Italy (2010) [E1]
DOI 10.4028/www.scientific.net/DDF.297-301.1226
Citations Scopus - 1
Co-authors Irina Belova, Graeme Murch
2008 Vesenjak M, Fiedler T, Ren Z, Ochsner A, 'Behaviour of syntactic and partial hollow sphere structures under dynamic loading', Advanced Engineering Materials, Nürnberg, Germany (2008) [E1]
DOI 10.1002/adem.200700325
Citations Scopus - 19Web of Science - 17
2007 Fiedler T, Ochsner A, 'On the thermal conductivity of adhesively bonded and sintered hollow sphere structures (HSS)', Diffusion in solids and liquids: heat transfer - microstructure and properties, University of Aveiro, Portugal (2007) [E1]
DOI 10.4028/www.scientific.net/MSF.553.39
Show 10 more conferences
Edit

Grants and Funding

Summary

Number of grants 19
Total funding $1,780,222

Click on a grant title below to expand the full details for that specific grant.


20153 grants / $433,275

High Energy Density - High Delivery Rate Thermal Energy Storage$335,500

Funding body: ARC (Australian Research Council)

Funding body ARC (Australian Research Council)
Project Team Professor Erich Kisi, Doctor Thomas Fiedler
Scheme Discovery Projects
Role Investigator
Funding Start 2015
Funding Finish 2015
GNo G1400112
Type Of Funding Aust Competitive - Commonwealth
Category 1CS
UON Y

High Performance Roadside Safety Barrier (HPRSB)$96,775

Funding body: Transurban Limited

Funding body Transurban Limited
Project Team Doctor Thomas Fiedler, Mr Mehdi Taherishargh
Scheme Innovation Grant
Role Lead
Funding Start 2015
Funding Finish 2015
GNo G1500729
Type Of Funding Grant - Aust Non Government
Category 3AFG
UON Y

17th IAHR International Conference on Cooling Tower and Heath Exchanger, Gold Coast Australia, 7-11 September 2015$1,000

Funding body: University of Newcastle - Faculty of Engineering & Built Environment

Funding body University of Newcastle - Faculty of Engineering & Built Environment
Project Team Doctor Thomas Fiedler
Scheme Travel Grant
Role Lead
Funding Start 2015
Funding Finish 2015
GNo G1501014
Type Of Funding Internal
Category INTE
UON Y

20142 grants / $21,500

High Energy Density - High Delivery Rate Thermal Energy Storage$20,000

Funding body: University of Newcastle

Funding body University of Newcastle
Project Team Professor Erich Kisi, Doctor Thomas Fiedler, Doctor Heber Sugo
Scheme Near Miss Grant
Role Investigator
Funding Start 2014
Funding Finish 2014
GNo G1301384
Type Of Funding Internal
Category INTE
UON Y

Heat Transfer 2014, A Coruna Spain, 2-4 July 2014$1,500

Funding body: University of Newcastle - Faculty of Engineering & Built Environment

Funding body University of Newcastle - Faculty of Engineering & Built Environment
Project Team Doctor Thomas Fiedler
Scheme Travel Grant
Role Lead
Funding Start 2014
Funding Finish 2014
GNo G1400726
Type Of Funding Internal
Category INTE
UON Y

20131 grants / $305,000

Structural design of third generation biomaterials$305,000

Funding body: ARC (Australian Research Council)

Funding body ARC (Australian Research Council)
Project Team Professor Graeme Murch, Doctor Thomas Fiedler, Professor Aldo Boccaccini
Scheme Discovery Projects
Role Investigator
Funding Start 2013
Funding Finish 2013
GNo G1200061
Type Of Funding Aust Competitive - Commonwealth
Category 1CS
UON Y

20124 grants / $270,116

2011 Research Fellowship - PRCGMM$252,614

Funding body: University of Newcastle

Funding body University of Newcastle
Project Team Doctor Thomas Fiedler
Scheme Research Fellowship
Role Lead
Funding Start 2012
Funding Finish 2012
GNo G1200790
Type Of Funding Internal
Category INTE
UON Y

Computer Aided Design of Advanced Lightweight Materials (CADALM)$15,000

Funding body: University of Newcastle

Funding body University of Newcastle
Project Team Doctor Thomas Fiedler
Scheme Fellowship Grant
Role Lead
Funding Start 2012
Funding Finish 2012
GNo G1201005
Type Of Funding Internal
Category INTE
UON Y

Australian Biomedical Engineering Conference 2012, The Greek Club, Brisbane, Queensland, 16 - 19 September 2012$1,302

Funding body: University of Newcastle - Faculty of Engineering & Built Environment

Funding body University of Newcastle - Faculty of Engineering & Built Environment
Project Team Doctor Thomas Fiedler
Scheme Travel Grant
Role Lead
Funding Start 2012
Funding Finish 2012
GNo G1200793
Type Of Funding Internal
Category INTE
UON Y

Physical Analysis of Corevo Aluminum Foam$1,200

Funding body: Constellium Innovation Cells

Funding body Constellium Innovation Cells
Project Team Doctor Thomas Fiedler
Scheme Research Grant
Role Lead
Funding Start 2012
Funding Finish 2012
GNo G1201196
Type Of Funding International - Non Competitive
Category 3IFB
UON Y

20111 grants / $1,500

DSL 2011, Portugal, 26 - 30 June 2011$1,500

Funding body: University of Newcastle - Faculty of Engineering & Built Environment

Funding body University of Newcastle - Faculty of Engineering & Built Environment
Project Team Doctor Thomas Fiedler
Scheme Travel Grant
Role Lead
Funding Start 2011
Funding Finish 2011
GNo G1100262
Type Of Funding Internal
Category INTE
UON Y

20104 grants / $682,000

Design of high performance heat sink composites$340,000

Funding body: ARC (Australian Research Council)

Funding body ARC (Australian Research Council)
Project Team Doctor Thomas Fiedler
Scheme Discovery Projects
Role Lead
Funding Start 2010
Funding Finish 2010
GNo G0189979
Type Of Funding Aust Competitive - Commonwealth
Category 1CS
UON Y

Design of reactive foils for joining amorphous alloys$330,000

Funding body: ARC (Australian Research Council)

Funding body ARC (Australian Research Council)
Project Team Professor Irina Belova, Doctor Thomas Fiedler, Doctor Elena Levchenko, Dr Daniel Riley, Professor Andreas Oechsner
Scheme Discovery Projects
Role Investigator
Funding Start 2010
Funding Finish 2010
GNo G0189975
Type Of Funding Aust Competitive - Commonwealth
Category 1CS
UON Y

2009 VCAward for Research Excellence$10,000

Funding body: University of Newcastle

Funding body University of Newcastle
Project Team Doctor Thomas Fiedler
Scheme Award for Research Excellence
Role Lead
Funding Start 2010
Funding Finish 2010
GNo G1000405
Type Of Funding Internal
Category INTE
UON Y

2009 FEBE Award for Research Excellence$2,000

Funding body: University of Newcastle

Funding body University of Newcastle
Project Team Doctor Thomas Fiedler
Scheme Award for Research Excellence
Role Lead
Funding Start 2010
Funding Finish 2010
GNo G1000400
Type Of Funding Internal
Category INTE
UON Y

20093 grants / $65,131

2009 Near Miss Grant for DP0985268, DP0984793, DP0985799$60,000

Funding body: University of Newcastle

Funding body University of Newcastle
Project Team Professor Irina Belova, Doctor Thomas Fiedler, Professor Andreas Oechsner, Professor Graeme Murch, Doctor Elena Levchenko, Doctor Alexander Evteev
Scheme Near Miss Grant
Role Investigator
Funding Start 2009
Funding Finish 2009
GNo G0189820
Type Of Funding Internal
Category INTE
UON Y

Computed tomography-based finite element analysis of the thermal and mechanical properties of advanced cellular metals$3,931

Funding body: University of Newcastle

Funding body University of Newcastle
Project Team Doctor Thomas Fiedler
Scheme Early Career Researcher Grant
Role Lead
Funding Start 2009
Funding Finish 2009
GNo G0189777
Type Of Funding Internal
Category INTE
UON Y

DSL-2009, Rome, 24-26 June 2009$1,200

Funding body: University of Newcastle - Faculty of Engineering & Built Environment

Funding body University of Newcastle - Faculty of Engineering & Built Environment
Project Team Doctor Thomas Fiedler
Scheme Travel Grant
Role Lead
Funding Start 2009
Funding Finish 2009
GNo G0190260
Type Of Funding Internal
Category INTE
UON Y

20081 grants / $1,700

The 4th WSEAS International Conference on Applied and Theoretical Mechanics (Mechanics 08), Cairo, Egypt, 29 - 31 Dec 08$1,700

Funding body: University of Newcastle

Funding body University of Newcastle
Project Team Doctor Thomas Fiedler
Scheme Travel Grant
Role Lead
Funding Start 2008
Funding Finish 2008
GNo G0189733
Type Of Funding Internal
Category INTE
UON Y
Edit

Research Supervision

Number of supervisions

Completed1
Current3

Total current UON EFTSL

PhD1.4

Current Supervision

Commenced Level of Study Research Title / Program / Supervisor Type
2014 PhD Mechanical Performance of Composite Materials
Mechanical Engineering, Faculty of Engineering and Built Environment, The University of Newcastle
Co-Supervisor
2012 PhD Characterisation of Advanced Porous Materials
Mechanical Engineering, Faculty of Engineering and Built Environment, The University of Newcastle
Co-Supervisor
2012 PhD Fabrication and Mechanical Properties of Advanced Lightweight Materials
Mechanical Engineering, Faculty of Engineering and Built Environment, The University of Newcastle
Principal Supervisor

Past Supervision

Year Level of Study Research Title / Program / Supervisor Type
2012 PhD Numerical and Experimental Analysis of Cellular Materials
Mechanical Engineering, Faculty of Engineering and Built Environment, The University of Newcastle
Co-Supervisor
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News

Australian Research Council (ARC)

ARC Discovery Project funding success

November 19, 2014

Professor Erich Kisi and Dr Thomas Fiedler have been awarded more than $355,000 in ARC Discovery Project funding commencing in 2015 for their research project High Energy Density - High Delivery Rate Thermal Energy Storage.

Dr Thomas Fiedler

Position

Senior Lecturer
Centre for Mass and Thermal Transport in Engineering Materials
School of Engineering
Faculty of Engineering and Built Environment

Focus area

Mechanical Engineering

Contact Details

Email thomas.fiedler@newcastle.edu.au
Phone (02) 4921 6188
Fax (02) 4921 6946
Link UoN Blogs

Office

Room ES414
Building ES
Location Callaghan
University Drive
Callaghan, NSW 2308
Australia
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