Applied Mathematics and Mechanics (English Edition) ›› 2009, Vol. 30 ›› Issue (3): 293-301.doi: https://doi.org/10.1007/s10483-009-0303-z
徐春晖,秦太验,袁丽,野田尚昭
Chun-hui XU, Tai-yan QIN ,Li YUAN, Nao-Aki Noda
摘要: By using the concept of finite-part integral, a set of hypersingular integrodifferential equations for multiple interfacial cracks in a three-dimensional infinite bimaterial subjected to arbitrary loads is derived. In the numerical analysis, unknown displacement discontinuities are approximated with the products of the fundamental density functions and power series. The fundamental functions are chosen to express a two-dimensional interface crack rigorously. As illustrative examples, the stress intensity factors for two rectangular interface cracks are calculated for various spacing, crack shape and elastic constants. It is shown that the stress intensity factors decrease with the crack spacing.
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