Automatic generation of statistical volume elements using multibody dynamics and an erosion-based homogenization method

Couture, A., François, V., Cuillière, J.-C. et Pilvin, P. (2022). Automatic generation of statistical volume elements using multibody dynamics and an erosion-based homogenization method. Computational Mech, 69 . pp. 1041-1066. ISSN 1432-0924 DOI 10.1007/s00466-021-02130-1

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Résumé

Modeling particle based heterogeneous materials using statistical volume elements (SVE) for predicting its mechanical behavior can be tedious when the particles are densely packed or elongated. Positioning particles without creating overlaps and avoiding meshing problems are two obstacles frequently mentioned. To counter these obstacles, a new modeling methodology based on multibody dynamics (MBD) and on an erosion-based homogenization method is proposed. The CAD model of a SVE is first generated and particles causing meshing problems are excluded. Meshing and finite element analysis are automatically carried out and a subsequent erosion-based homogenization method is used to retrieve the macroscopic behavior of the SVE. To illustrate the potential of this new method, results obtained with a random sequential adsorption algorithm on non-eroded SVEs are compared with results obtained from the same SVEs submitted to our erosion method. These results are then compared with results obtained using the new MBD based approach.

Type de document:	Article
Mots-clés libres:	Representative volume element (RVE) Statistical volume element (SVE) Unified topology model (UTM) Computer aided design (CAD) Finite element analysis (FEA) Multibody dynamics
Date de dépôt:	25 avr. 2022 13:01
Dernière modification:	31 janv. 2023 05:00
Version du document déposé:	Post-print (version corrigée et acceptée)
URI:	https://depot-e.uqtr.ca/id/eprint/10117

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