Numerical propagation of dynamic cracks using X-FEM
DOI:
https://doi.org/10.13052/REMN%20–%2016/2007Keywords:
partition of unity, extended finite element method, dynamic crack propagation, cohesive modelAbstract
This paper presents an application of the eXtended Finite Element Method for numerical modeling of the dynamic cracks propagation. The numerical cracks representation is adapted to the time-dependent mechanical formulation, using the Heaviside step function for completely cutted elements and the cohesive model for crack tips. In order to find the propagation parameters, a crack evolution model is proposed. The numerical implementation is achieved in new explicit FE module. A numerical example is proposed for proving the computational efficiency of this new module.
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