An expression of elastic-plastic constitutive law incorporating a stress increment dependence. (3rd Report: Analysis of localized necking of rigid-plastic plates).

Abstract

In the first report, a new expression op a constitutive law for elastic-plastic material was proposed using two transition parameters which are essential in describing the property of plastic materials. These parameters denote the magnitude and direction of plastic strain increments. Here, Localized necking of rigid-plastic plates under biaxial stretching is studied according to Storen-Rice theory. A constitutive equation for linear-comparison solids is used for Hencky's deformation rule.