Further Investigation of a New Hardening Law in Crystal Plasticity

Abstract

A simple theory of latent hardening in crystals, recently proposed by the authors [1], is applied to the determination of anisotropic hardening in slip systems of face-centered cubic crystals in the tensile test, based upon a parabolic resolved-shear-stress versus slip curve in the active system. The theory predicts the generally observed continuation of finite single slip beyond the crystallographic symmetry line. Moreover, the predicted diversity of finite distortional hardening among latent slip systems is in qualitative agreement with experiment.

Unified creep-plasticity model for halite

“…It is instruct.ive to note that the behavior of this model is very much like the two-surface plasticity model (11). Each uf these modeis ha·s good plastic behavior at small strains and a realistic Bauschinger effect: 6 The final point worth noting is the recovery term in Equation (3). The <ars> 2 dependence in the model is a source of some embarrassment in light of the accepted cubic dependence of Lagneborg (9).…”