The Application of Crystal Plasticity Material Files in Stamping Simulations

Abstract

Representative material data are inevitable to execute accurate stamping simulations. These material data are generally generated by performing extensive mechanical material tests. In this research the generation and application of material data from a crystal plasticity-based multiscale model have been studied. The crystal plasticity model enables to generate detailed material properties which can be applied in various yield locus models. The evolution of the anisotropic properties during deformation can be readily taken into account with the crystal plasticity model. The generated material data have been applied in deep drawing simulations of a cross-die. The thickness distribution of the simulation has been compared with experiments. Results showed that crystal plasticity models are a viable alternative for material data generation, having as main advantage that extensive mechanical experiments are avoided.