Pages 93-94
An investigation of theoretical modeling and numerical simulation for polymer such as polypropylene or ABS resin is expected for its industrial application under conditions of large deformation, high strain rate and failure of a structure. In this report, constitutive equations of non-coaxial viscoplasticity and of craze as a damage in polymer are thermodynamically derived by considering anisotropic craze evolution with plastic deformation. Also a transformation rule of craze tensor between damage and pseudo non-damage configurations is newly proposed. Then influences of damage evolution around a shear band to Young's modulus and effective stress are numerically discussed through a large deformation FEM analysis.
