Crystal plasticity based constitutive laws for Be: effect of strain rate, twinning and texture on the mechanical response (original) (raw)

This research investigates crystal plasticity-based constitutive laws for beryllium (Be), focusing on the effects of strain rate, twinning, and texture on the material's mechanical response. A visco-plastic grain model is employed to analyze grain deformation through crystallographic mechanisms, including dislocation density evolution related to temperature and strain rate. The study highlights a rapid transition from dislocation-controlled to twin-controlled hardening as either the strain rate increases or the temperature decreases, emphasizing the significance of anisotropic behavior in beryllium and the need for a comprehensive understanding of slip and twinning interactions.