TWIN SHEAR STRESS THEORY AND ITS GENERALIZATION

Abstract

Based on the twin shear stress yield criterion proposed by the author in 1961, a systematic theory of twin shear stress criterion is developed in the present paper. It includes twin shear stress yield criterion (in stress space), twin shear strain yield criterion (in strain space), generalized twin shear stress criterion considering the SD effect and the influence of hydrostatic stress, and a critical twin shear stress criterion of slip in crystal.