Simulations of aluminum deformation using Crystal Plasticity model

摘要

The paper focused on the problem of simulation of material behaviour during forming process. The simulation is carried out by Finite Element Method (FEM). In contrary to conventional FEM simulation to describe material behaviour Crystal Plasticity (CP) model was used. Main advantage of the model is possibility of simultaneous description of material hardening and texture development during deformation. Nevertheless, the model usage requires its parameters identification, which are not commonly available in literature. In this work inverse method was used to identify the models parameters. First, the parameters were identified for aluminum single crystal, subsequently they were used for simulation of poly crystalline aluminum behaviour during deformation. Obtained results are in good agreement with those commonly observed in polycrystalline aluminum deformation experiments.