Calibrating a homogenized polycrystal model from large scale FE computations of polycrystalline aggregates - Archive ouverte HAL Accéder directement au contenu
Article Dans Une Revue J. Phys. IV France Année : 2001

Calibrating a homogenized polycrystal model from large scale FE computations of polycrystalline aggregates

Fabrice Barbe
Samuel Forest
Georges Cailletaud

Résumé

Homogenization-based estimates of the effective behaviour of elastoviscoplastic polycrystals usually resort to approximations like that of an inclusion embedded in the homogeneous equivalent medium in the case of the self-consistent scheme. We propose here to replace this idealized intermediate problem by the actual computation of a polycrystalline representative volume element. Computations of a cube made of 200 zinc grains are presented and used to calibrate the scale transition rule of a simplified homogenized polycrystal model. A coupled identification procedure is presented to determine both intragranular material parameters and scale transition parameters from experimental tension, creep and relaxation tests.
Fichier principal
Vignette du fichier
Barbe-Parisot J de physique IV 2001 277-284.pdf (1.23 Mo) Télécharger le fichier
Origine : Fichiers produits par l'(les) auteur(s)
Loading...

Dates et versions

hal-02327371 , version 1 (22-10-2019)

Identifiants

Citer

Fabrice Barbe, Rodolphe Parisot, Samuel Forest, Georges Cailletaud. Calibrating a homogenized polycrystal model from large scale FE computations of polycrystalline aggregates. J. Phys. IV France, 2001, 11 (PR5), pp.Pr5-277 - Pr5-284. ⟨10.1051/jp4:2001534⟩. ⟨hal-02327371⟩
29 Consultations
50 Téléchargements

Altmetric

Partager

Gmail Facebook X LinkedIn More