Computation of Rupture Strain from Macroscopic Criteria

Abstract

In this paper, analytical studies of unit cube with different macroscopic rupture criteria have shown that stress triaxiality is a key parameter on which the magnitude of rupture strain depends. Numerical simulations of tensile test were performed using commercial finite element code ABAQUS on unit cube element. Post-process data of the simulation of tensile test of unit cube element was taken for computation of rupture strain and stress triaxiality. The relation between the strains at rupture versus the stress triaxiality was quantified.