Incremental evolution of induced anisotropy

Experimental characterization and modeling of the hardening behavior of the sheet steel LH800

“…In Feigenbaum and Dafalias [26], a simplified version of such a model is developed in which there is no coupling to the evolution of the back stress. Development of these types of models has been motivated by tension-torsion experiments on aluminum and steel tubes (e.g., Phillips et al [27], Boucher and Cordebois [28], Ishikawa [23]). In Phillips et al [27], Boucher and Cordebois [28], a distortion of the yield surface in the direction of applied stress was determined.…”

“…Development of these types of models has been motivated by tension-torsion experiments on aluminum and steel tubes (e.g., Phillips et al [27], Boucher and Cordebois [28], Ishikawa [23]). In Phillips et al [27], Boucher and Cordebois [28], a distortion of the yield surface in the direction of applied stress was determined. This involved an increase in curvature of the yield surface in this direction and a corresponding decrease in curvature in the opposite direction.…”