期刊
INTERNATIONAL JOURNAL OF FRACTURE
卷 162, 期 1-2, 页码 33-49出版社
SPRINGER
DOI: 10.1007/s10704-009-9405-9
关键词
Dynamic; Fracture; XFEM
We study several enrichment strategies for dynamic crack propagation in the context of the extended finite element method and the effect of different directional criteria on the crack path. A new enrichment method with a time dependent enrichment function is proposed. In contrast to previous approaches, it entails only one crack tip enrichment function. Results for stress intensity factors and crack paths for different enrichments and direction criteria are given.
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