Simulation of the anisotropic behavior of titanium alloys during sheet metal forming

Benoît Revil-Baudard (1) , Elisabeth Massoni (1)

1 CEMEF - Centre de Mise en Forme des Matériaux

This paper introduces a constitutive elastoplastic model based on anisotropic yield criterion. An evolving anisotropy during simulation is considered. The anisotropy axes are updated with the deformation gradient. An anisotropic yield criterion, an isotropic hardening and a kinematic hardening model the plastic behavior of titanium alloys. Different plastic yield criteria are compared to show the accuracy of each plasticity model for the simulation of forming processes.

Mots clés: Anisotropy; Plasticity; Finite element method; Yield criteria; Hexagonal closed packed metals

Domaines: Matériaux

Benoît Revil-Baudard, Elisabeth Massoni. Simulation of the anisotropic behavior of titanium alloys during sheet metal forming. 12th ESAFORM Conference on Material Forming, Apr 2009, Enschede, Netherlands. pp.Pages 73-76, ⟨10.1007/s12289-009-0535-4⟩. ⟨hal-00509446⟩