Abstract: A pressure-dependent cap model that is capable of describing the brittle-ductile transition in porous rocks is proposed. The model consists of a hardening Drucker-Prager yield cone with a nonassociative flow rule, an ...

Abstract: In this study, a multiscale material model is employed to simulate two metal forming processes: 2D plane strain compression and a 3D biaxial bulge test. A generalized Taylor-type polycrystal ...