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Xu H.,PLA Army Officer Academy | Wang F.,PLA Army Officer Academy | Zhang D.,PLA Army Officer Academy
Advanced Materials Research | Year: 2012

A special method based on the extended finite element method is developed for the simulation of dynamic crack growth. It shows great advantages in the simulations of moving crack and mixed mode crack. The extended finite element method for two-dimensional crack is described in this paper. The crack form of the extended finite element in the homogeneous medium is studied in detail, and the internal detail in crack tip element and crack penetration element is analyzed. At last, the displacement mode is generated. © (2012) Trans Tech Publications, Switzerland.


Zhang D.,PLA Army Officer Academy | Wang F.,PLA Army Officer Academy | Xu H.,PLA Army Officer Academy
Advanced Materials Research | Year: 2012

The extended finite element method (XFEM) provides an effective tool for analyzing crack problems. The control equations and the weak form can be established through balance equations, boundary condition, geometry equations, etc. After the establishment of stiffness matrix, the crack problems can be solved by XFEM conveniently. © (2012) Trans Tech Publications.

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