FEM for the Sekiguchi-Ohta Model considering non-smooth yield surface

抄録

The FEM program for stress-deformation analysis considering non-smooth yield surface of constitutive model was developed. The consideration and handling for the singular point on non-smooth yield surface of the Sekiguchi-Ohta model was carried out based on Koiter′s associated flow rule. The extra implementation for solving the difficulty at the singular point is added to FEM program called DACSAR (without any modification to the whole procedure). The numerical results from this program with and without the extra implementation was compared.