Abstract
A general solution is derived for the plane problem of multiple microcracks near the tip in process zone of a semi-infinite macrocrack in an anisotropic elastic solid. The pseudo-traction method, addressed thoroughly in isotropic cases, is extended to anisotropic cases. A system of Fredholm integral equations, with difficulty in evaluation of the singular integrals, is solved by invoking the asymptotic behavior of the pseudo-tractions on the macrocrack faces. The interaction effect of the release of residual stresses due to near-tip microcracking is then evaluated. The J-integral analysis is also performed to give a consistency check of the solution and some useful conclusions.
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Chen, YH., Zuo, H. Investigation of macrocrack-microcrack interaction problems in anisotropic elastic solids – Part I: General solution to the problem and application of the J-integral. International Journal of Fracture 91, 61–82 (1998). https://doi.org/10.1023/A:1007470512788
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DOI: https://doi.org/10.1023/A:1007470512788