A PHYSICALLY-BASED CONSTITUTIVE MODEL FOR METAL DEFORMATION

This work combines into a generalized, unified model the existing level of understanding of physical processes, such as strain hardening, recovery, dislocation velocity dependence of effective stress, anelastic and grain boundary effects. Part II uses this model of incremental deformation, incorporating strain history dependence, for predicting material behavior in various laboratory experiments. Of interest are common laboratory experiments such as the tensile test, creep test, and variations such as load relaxation, strain-rate change, decremental unloading, unloading-holding-reloading and reverse loading tests.