Constitutive relations for slip and twinning in high rate deformations: A review and update

Constitutive relations for slip and deformation twinning behaviors of a number of metals, including alpha-titanium, copper, alpha-iron, and tantalum materials, are described over a very large range in imposed strain rates. The focus is on application to higher-rate Taylor (solid cylinder) impact tests, split-Hopkinson pressure bar measurements, and shock as compared with ramp-type isentropic compression tests and including simulations of the corresponding dislocation-based deformation behaviors.

Automated summary

The paper describes constitutive relations for slip and deformation twinning behaviors of several metals at different imposed strain rates, focusing on their application in impact and pressure tests. The study also includes simulations of corresponding dislocation-based deformation behaviors.