Abstract
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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Menouillard, T., Song, JH., Duan, Q. et al. Time dependent crack tip enrichment for dynamic crack propagation. Int J Fract 162, 33–49 (2010). https://doi.org/10.1007/s10704-009-9405-9
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DOI: https://doi.org/10.1007/s10704-009-9405-9