Abstract
Crack growth under the elastic-plastic fracture is an important issue of the structural integrity, because seismic wave causes low cycle fatigue in the engineering structure. We developed the automated FEM analysis framework for elastic-plastic crack growth simulation. The framework consists of the 4 major modules. In this work, we employ crack tip opening displacement (CTOD) and crack tip opening angle (CTOA) which are the property for characterizing fully plastic fracture. The present work is applied to the cyclic loading analysis of a pipe with a single notch. The work shows an automated mesh generation capability and fracture mechanics parameters to evaluate crack growth criterion.
