Joint Model for the Phase-Structural Deformation of Shape Memory Alloys

摘要

A joint model is proposed to describe the inelastic deformation of shape memory alloys during phase and structural transformations. This model takes into account the fundamental difference between these two mechanisms and the influence of the first mechanism on the second. In contrast to the well-known analogs, this model allows the phase-structural deformation arc length (analog of the Odqvist parameter in the theory of plasticity) to exceed the crystallographic deformation intensity of a phase transition for the processes of nonmonotonic loading.