| 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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Ahmadi, Hossein
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (8/8 displayed)
- 2024A numerical multi-scale method for analyzing the rate-dependent and inelastic response of short fiber reinforced polymers : modeling framework and experimental validationcitations
- 2023Predicting the elasto-plastic response of short fiber reinforced composites using a computationally efficient multi-scale framework based on physical matrix propertiescitations
- 2023Closed-form analytical solutions for predicting stress transfers and thermo-elastic properties of short fiber compositescitations
- 2022A variational approach for accurate prediction of stress and displacement fields and thermo-elastic constants in general symmetric laminates containing ply cracking and delamination under general triaxial loadingcitations
- 2022A computationally efficient multi-scale strategy for predicting the elasto-plastic behaviour of short fiber composites
- 2022A hierarchical multi-scale analytical approach for predicting the elastic behavior of short fiber reinforced polymers under triaxial and flexural loading conditionscitations
- 2020Variational analysis of cracking in general composite laminates subject to triaxial and bending loadscitations
- 2020Closed-form formulae for prediction of homogenized ply-properties and laminate thermo-elastic constants in symmetric laminates containing ply cracks in multiple orientationscitations
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conferencepaper
A computationally efficient multi-scale strategy for predicting the elasto-plastic behaviour of short fiber composites
Abstract
Predicting the elasto-plastic response of short fiber reinforced polymers (SFRPs) is a challenging task due to the important effects of microstructural details (e.g. fiber interactions, orientations, volume fraction distribution, etc). The main goal of this study is to provide a straightforward framework for estimating the nonlinear response of SFRPs having complex microstructures using intrinsic physical properties of the matrix phase without using any reverse engineering. To do so, simplified 3D unit cells considering the effects of fiber interactions, are selected in order to predict the elasto-plastic response of SFRPs with aligned fibers (see Fig. 1). The effective mechanical responses of such 3D unit cells under different loading conditions are then used to calibrate the Hill plasticity model [1] to estimate anisotropic responses of SFRPs at microscopic levels. By coupling the obtained plasticity model with Pseudo-grain decomposition techniques [2, 3] as well as different orientation averaging approaches, the effects of fiber misalignments are taken into account. The numerical accuracy and computational efficiency of the employed unit cells are first studied by comparing the obtained results with those of multi-fiber RVEs with aligned fibers. Second, the validity and efficiency of the orientation averaging strategy are investigated using RVEs with randomly distributed fibers. The obtained results reveal that the proposed anisotropic Hill’s model calibrated with simple FEM unit cells largely reduces the number of required calibration tests and provides a computationally efficient framework to predict the nonlinear response of SFRPs while the effects of microstructural details are taken into account.