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Article Dans Une Revue Computational Materials Science Année : 2012

Precise generation of complex statistical Representative Volume Elements (RVEs) in a finite element context

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Patrice Laure
Thierry Coupez
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Luisa Silva
Marc Bernacki

Résumé

A precise procedure to generate complex 2D and 3D statistical virtual microstructures in a finite element (FE) context is described. This technique, based on Laguerre tessellations and advancing front method, level-set description of interfaces and anisotropic meshing adaptation, is detailed for equiaxial polycrystal and powder RVEs defined by a size distribution law. The capability of the procedure to respect statistical data could be insured by the advancing front method coupled with an optimization procedure depending on the nature of the considered RVE. Moreover, by applying a graph coloration technique, the number of level-set functions used to represent the cells and also in anisotropic mesh adaptation is greatly reduced.
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Dates et versions

hal-00699554 , version 1 (21-05-2012)

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Citer

Karim Hitti, Patrice Laure, Thierry Coupez, Luisa Silva, Marc Bernacki. Precise generation of complex statistical Representative Volume Elements (RVEs) in a finite element context. Computational Materials Science, 2012, 61, pp.224-238. ⟨10.1016/j.commatsci.2012.04.011⟩. ⟨hal-00699554⟩
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