Finite element analysis of surface cracks by the supercomputer. 2nd report Elastic-plastic analysis of surface cracks.

Abstract

Using the supercomputer, one can execute the elastic-plastic analyses of three-dimensional surface cracks very quickly and economically. But, a special computer code is necessary to achieve high computing speed in the supercomputer. So, the authors have developed a three dimensional finite element code FEM 3 D for the supercomputer. In FEM 3 D, the solver is the parallel skyline method and the J-integral is calculated by the virtual crack extension method. By FEM 3 D, elastic-plastic analyses and evaluation of the J-integral of surface cracks have been carried out in a short computing time and with good accuracy.