Abstract
This paper deals with the elastic interaction between a main-crack and a parallel microcrack in an orthotropic plane elastic solid. The pseudo-traction method proposed by Chen [Engng Fract. Mech.20, 591–597 and 767–776 (1984a, b)], and Horii and Nemat-Nasser [Int. J. Solids Structures21, 731–745 (1985)] in isotropic cases is extended into orthotropic cases. After introducing two kinds of fundamental solutions, a system of Fredholm integral equations is derived from which the interaction effect of the release of residual stresses due to near-tip micro-cracking is evaluated. Numerical results are shown in figures and tables. Some useful conclusions are discussed.
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