Rate-independent crystalline and polycrystalline plasticity, application to FCC materials - Archive ouverte HAL Accéder directement au contenu
Article Dans Une Revue International Journal of Plasticity Année : 2000

Rate-independent crystalline and polycrystalline plasticity, application to FCC materials

(1) , (1) , (1)
1

Résumé

This paper deals with the simulation of the mechanical response and texture evolution of cubic crystals and polycrystals for a rate-independent elastic-plastic constitutive law. No viscous effects are considered. An algorithm is introduced to treat the difficult case of multi-surface plasticity. This algorithm allows the computation of the mechanical response of a single crystal. The corresponding yield surface is made of the intersection of several hyper-planes in the stress space. The problem of the multiplicity of the slip systems is solved thanks to a pseudo-inversion method. Self and latent hardening are taken into account. In order to compute the response of a polycrystal, a Taylor homogenization scheme is used. The stress-strain response of single crystals and polycrystals is computed for various loading cases. The texture evolution predicted for compression, plane strain compression and simple shear are compared with the results given by a visco-plastic polycrystalline model.

Dates et versions

hal-00536865 , version 1 (17-11-2010)

Identifiants

Citer

Robert Knockaert, Yvan Chastel, Elisabeth Massoni. Rate-independent crystalline and polycrystalline plasticity, application to FCC materials. International Journal of Plasticity, 2000, 16 (2), p.179-198. ⟨10.1016/S0749-6419(99)00071-6⟩. ⟨hal-00536865⟩
65 Consultations
0 Téléchargements

Altmetric

Partager

Gmail Facebook Twitter LinkedIn More