Journal of Theoretical
and Applied Mechanics

10, 2, pp. 259-279, Warsaw 1972

O złożonych modelach wzmocnienia plastycznego

Zenon Mróz, Czesław Goss
Simple models of isotropic or kinematic workhardening when combined with flow rule are not capable to describe complex phenomena occurring during plastic deformation for non-proportional loading programmes, especially for cyclical loads involving consecutive loading and unloading. A mathematical structure of the plasticity theory with internal state parameters is discussed and some particular models are considered within the framework of a general theory. Comparative results are obtained for three different loading programmes. Some previous theories are also briefly reviewed in the paper.