Abstract
A fast multipole method (FMM) based on complex Taylor series expansions is applied to the dual boundary element method (DBEM) for large-scale crack analysis in linear elastic fracture mechanics. Combining multipole expansions with local expansions, both the computational complexity and memory requirement are reduced to O(N), where N is the number of DOF. An incremental crack-extension analysis based on the maximum principal stress criterion and the Paris law is used to simulate the fatigue growth of numerous cracks in a 2D solid. Some examples are presented to validate the numerical scheme.
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Wang, P., Yao, Z. Fast multipole DBEM analysis of fatigue crack growth. Comput Mech 38, 223–233 (2006). https://doi.org/10.1007/s00466-005-0743-9
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DOI: https://doi.org/10.1007/s00466-005-0743-9