Open Access

ARTICLE

The Moving Finite Element Method Based on Delaunay Automatic triangulation For Fracture Path Prediction Simulations In Nonlinear Elastic-Plastic Materials

T. Nishioka¹, Y. Kobayashi¹, T. Fujimoto¹

1 Faculty of Maritime Sciences, Kobe University, Kobe, Japan

Computer Modeling in Engineering & Sciences 2007, 17(3), 231-238. https://doi.org/10.3970/cmes.2007.017.231

Abstract

First, for growing cracks in elastic-plastic materials, an incremental variational principle is developed to satisfy the boundary conditions near newly created crack surfaces. Then using this variational principle, a moving finite element method is formulated and developed, based on the Delaunay automatic triangulation. Furthermore, theoretical backgrounds on numerical prediction for fracture path of curving crack using T* integral are explained. Using the automatic moving finite element method, fracture-path prediction simulations are successfully carried out.

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Keywords

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