Abstract
As the present computing capacity has continued to grow, it has been possible to apply numerical simulation for various phenomena such as fluid dynamics and solid dynamics. Because the failure analysis of structures must deal with dynamic phenomena which involve large deformation, the treatment of plastic mechanics is important. In this research, new method for 3-dimensional elastic-plastic analysis is developed based on Moving Particle Semi-implicit (MPS) method. The strain is modeled using gradient model of the MPS model and the stress is evaluated based on Von-Mises theory using elastic predictor-radial corrector method. The new method is applied for two cases. It is shown that the results have a good accuray.
