Open Access

ABSTRACT

Fatigue Crack Growth Simulation using S-version FEM

M. Kikuchi¹, Y. Wada², A. Utsunomiya³, Y. Li⁴

1 Tokyo University of Scienceus, Japan
2 Suwa Tokyo University of Science, Japan
3 Graduation school of Tokyo University of Science, Japan
4 Northwestern Polytechnical University, People’s Republic of China

The International Conference on Computational & Experimental Engineering and Sciences 2008, 8(2), 67-72. https://doi.org/10.3970/icces.2008.008.067

Abstract

Fatigue crack growth under mixed mode loading conditions is simulated using S-FEM. By using S-FEM technique, only local mesh should be re-meshed and it becomes easy to simulate crack growth. By combining with auto-meshing technique, local mesh is re-meshed automatically, and curved crack path is modeled easily. Three dimensional surface crack problem is solved by this technique. Pure mode I crack and slant crack problems are solved, and fatigue crack growth processes are simulated. The change of aspect ratio of surface crack and distributions of stress intensity factor along crack front are evaluated and discussed.

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