Abstract
The shear band bifurcation mode and the progress of the discontinuous displacement field are numerically analyzed with a finite-element method. Kinematics and criteria of shear band bifurcation mode in multiplicative hyperelasto-plastic materials are presented, and a finite-element method for finite deformation with enhanced incompatible mode, which can kinematically express the discontinuous field, is adopted. Examination of the localization criteria reveals that the shear band mode can be detected even in the associative strain-hardening materials. Several numerical results show the significance and the effectiveness of the consideration to the shear band kinematics in the numerical analysis for strain localization problems.
