| People | Locations | Statistics |
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| Naji, M. |
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| Motta, Antonella |
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| Aletan, Dirar |
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| Mohamed, Tarek |
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| Ertürk, Emre |
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| Taccardi, Nicola |
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| Kononenko, Denys |
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| Petrov, R. H. | Madrid |
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| Alshaaer, Mazen | Brussels |
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| Bih, L. |
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| Casati, R. |
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| Muller, Hermance |
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| Kočí, Jan | Prague |
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| Šuljagić, Marija |
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| Kalteremidou, Kalliopi-Artemi | Brussels |
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| Azam, Siraj |
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| Ospanova, Alyiya |
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| Blanpain, Bart |
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| Ali, M. A. |
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| Popa, V. |
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| Rančić, M. |
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| Ollier, Nadège |
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| Azevedo, Nuno Monteiro |
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| Landes, Michael |
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| Rignanese, Gian-Marco |
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Brassart, Laurence
University of Oxford
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (12/12 displayed)
- 2021Visco-Plastic Behaviour of a Polymer Matrix at the Fibre Diameter Length Scale: a Finite Element Mesoscale Model Relying on Shear Transformation Zone (STZ) Dynamics
- 2021Implementation and calibration of a mesoscale model for amorphous plasticity based on shear transformation dynamicscitations
- 2019Strain rate dependence of the contribution of surface diffusion to bulk sintering viscositycitations
- 2019Impact of second phase morphology and orientation on the plastic behavior of dual-phase steelscitations
- 2018Interfacial fibre decohesion in Friction Stir Processed Mg-C composites under tensile and compression loading
- 2017Micro-mechanical testing of magnesium based composites reinforced by carbon fibers manufactured by friction stir processing
- 2017Micro-mechanical testing of magnesium based composites reinforced by carbon fibers manufactured by friction stir processing
- 2016Influence of martensite volume fraction and hardness on the plastic behavior of dual-phase steels: Experiments and micromechanical modelingcitations
- 2016Influence of martensite volume fraction and hardness on the plastic behavior of dual-phase steels: Experiments and micromechanical modelingcitations
- 2014The influence of microstructure and composition on the plastic behaviour of dual-phase steelscitations
- 2011Homogenization of elasto-(visco)plastic composites : history-dependent incremental and variational approaches
- 2011A variational formulation for the incremental homogenization of elasto-plastic compositescitations
Places of action
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article
Implementation and calibration of a mesoscale model for amorphous plasticity based on shear transformation dynamics
Abstract
A mesoscale numerical model based on shear transformation zone (STZ) theory is implemented in a commercial finite element software. The model is designed to predict the (visco)plastic deformation response of amorphous solids at the nano- and micro-scale. The theoretical framework relies on earlier models developed by Bulatov and Argon (1994a) and of Homer and Schuh (2009). We justify the potential of the computational model by conducting reference calculations for model metallic and polymeric glasses in plane strain compression. Emphasis is placed on the effect of time and space discretisation on the predicted macroscopic response. The dependence of the predicted yield strength upon the values of the fundamental model parameters is analysed via a mean-field approximation. The mean-field approximation is validated based on a series of simulations in model parameter space. We provide guidelines for a straightforward but consistent parameter identification method via the mean-field approximation while starting from experimental data.