Unified Description of Elastoplastic Deformation of Solids: from Subloading Surface Concept to Tangential Plasticity

Abstract

The subloading surface model is based on the natural postulate that the plastic strain rate develops as the stress approaches the yield surface. Then, it is capable of describing rigorously the rate-independent/dependent elastoplastic deformation in monotonic/cyclic and proportional/non-proportional loadings. In addition, it is capable of describing rigorously the friction phenomenon between solids. Further, it provides a high efficiency in numerical calculation since the stress is attracted automatically to the yield surface. Then, the subloading surface model possesses the high capability of describing uniformly and rigorously the elastoplastic deformation and interaction of solids. This fact, mainly focused from the introduction of the subloading surface concept to the tangential plasticity, is analyzed and deliberated in this article.