AN ATTEMPT TO DESCRIBE BEHAVIOR OF METALS UNDER CYCLIC LOADS USING A MORE GENERAL WORKHARDENING MODEL

In many problems of plastic deformation, when the prescribed loads or displacement do not increase in proportion but vary in a complex manner, for instance alternating between prescribed limits, more general work-hardening models are needed in order to describe the plastic behavior. One of such models, previously proposed by the author, is applied here in order to discuss superposition of fixed and alternating loads. In particular, the case of steady tension and alternating torsion is considered in detail and the rate of axial strain accumulation is computed. There is a qualitative aggreement between theoretical prediction and experimental data. © 1969 Springer-Verlag.