A Meso-scale simulation on the effects of temperature and strain rate on the tensile mechanical behavior of pure titanium

摘要

A FEA model, based on the crystal plasticity theory, was established to study the mechanical behavior of titanium, and the microstructure evolution during deformation. Simulation on the dynamic tension of a commercially pure polycrystalline titanium at different strain rates and temperatures showed that the model can well describe the stress-strain behavior of titanium, the simulated results also revealed the contribution of different slip systems to the deformation of titanium, and the grain reorientation evolution caused by the crystallographic slipping.