A Temperature dependent two-surface cyclic plasticity model

Iwata, Koji

A two-surface cyclic plasticity model which enables precise prediction of inelastic behaviors of cyclically loaded metallic materials under non-isothermal conditions is presented. A concept of generic stress-strain relation, which is generated from monotonic and cyclic stable stress-strain curves, is introduced in the model to represent cyclic hardening. Temperature dependent material properties are taken into account in the rate form constitutive equation. The functional capability of the model is verified through its application to basic uniaxial material tests with/without varying temperature.