| 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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Andrade Pires, Fma
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Publications (5/5 displayed)
- 2016A note on the thermal effects upon a Gurson-type material modelcitations
- 2016Determination of the size of the Representative Volume Element (RVE) for the simulation of heterogeneous polymers at finite strainscitations
- 2016Damage analysis of out of plane undulated fiber compositescitations
- 2014An extended GTN model for ductile fracture under high and low stress triaxialitycitations
- 2013Micromechanical analysis of polymer composites reinforced by unidirectional fibres: Part I - Constitutive modellingcitations
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article
Determination of the size of the Representative Volume Element (RVE) for the simulation of heterogeneous polymers at finite strains
Abstract
The definition of the size of the Representative Volume Element (RVE) is extremely important for the mechanics and physics of heterogeneous materials since it should statistically represent the microstructure of the material. In the present contribution, a methodology based on statistical analysis and numerical experiments is proposed to determine the size of the RVE for heterogeneous amorphous polymers subjected to finite deformations. The approach is applied to Rubber Toughened Polystyrene (RT-PS) composed by a two phase random micro-structure. Different micro-structural samples with two different percentages of rubbery particles, namely 10% and 15%, inside the micro-structure are studied. Periodic boundary conditions (PBC) are enforced to the RVE due to their fast convergence to the theoretical/effective solution when the RVE size increases. The Finite Element Method (FEM) is used in combination with mathematical homogenization to obtain the macro-stress. Two criteria are proposed for the RVE size determination. The proposed statistical -numerical approach is general and easy to use, when compared to the previously proposed approaches, and covers other criteria available in the literature.