The Theory of Creep of Visco-Plasto-Elastomer

Abstract

Previously the authors proposed the concept of visco-plasto-elastomer, a dynamical model of which is shown in Fig. 1, because industrial materials used in practice usually have visco-plasto-elastic properties in their mechanical behaviors. In this paper various problems are discussed on the creep theory of visco-plasto-elastomer. Creep, recovery and repeated creep phenomena are analytically treated on the dynamical model, and as the result, various interesting phenomena and facts are found, for example, the existence of virgin state, dependence of the creep strain and the recovery strain on stress σ₀, existence of the permanent set, simple relation between the virgin creep strain and non-virgin creep strain, and so on.