Mix-mode Crack Growth Intelligence Analysis and Simulation Module Development Based on UIDL and APDL

As a main defect, the crack has enormous threat on structure safety, which the great majority is mix-mode in engineering. At present, mix-mode crack analysis mainly depend on the manpower way to rebuilt continuously crack structure one by one to simulate the process of crack growth. And the process of modeling crack structure also is complex. To improve the analysis efficiency and provide fast decision support for the engineer, the paper put forward the method to construct the mix-mode crack growth intelligence analysis and simulation module based on UIDL and APDL. So that the user easily built crack model on the base of origin structure (non-crack) through the module. And then the growth analysis and simulation can be automatically accomplished through the module according to the theory of fracture mechanics intelligently. In the paper, the module development method how to integrate UIDL and APDL into finite element software Ansys to generate costumed program to analyze crack growth is described detail. An example illustrated proved the module valid in the end.