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Article Dans Une Revue Revue Européenne de Mécanique Numérique/European Journal of Computational Mechanics Année : 2009

Combining phase field approach and homogenization methods for modelling phase transformation in elastoplastic media

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Kais Ammar
Georges Cailletaud
Samuel Forest

Résumé

A general constitutive framework is proposed to incorporate linear and nonlinear mechanical behaviour laws into a standard phase field model. In the diffuse interface region where both phases coexist, two mixture rules for strain and stress are introduced, which are based on the Voigt/Taylor and Reuss/Sachs well-known homogenization schemes and compared to the commonly used mixture rules in phase field models. Finite element calculations have been performed considering an elastoplastic precipitate growing in an elastic matrix in order to investigate the plastic accommodation processes.
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Dates et versions

hal-00461463 , version 1 (04-03-2010)

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Kais Ammar, Benoit Appolaire, Georges Cailletaud, Samuel Forest. Combining phase field approach and homogenization methods for modelling phase transformation in elastoplastic media. Revue Européenne de Mécanique Numérique/European Journal of Computational Mechanics, 2009, 18, pp.485-523. ⟨10.3166/ejcm.18.485-523⟩. ⟨hal-00461463⟩
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