Symmeric Galerkin boundary integral fracture analysis for plane orthotropic elasticity

摘要

This paper discusses the formulation and im- plementation of the symmetric Galerkin boundary integral method for two dimensional linear elastic orthorropic frature analysis. For the usual case of a traction-free crack, the symmetry of the coefficient matrix can be ef- fectively exploited to significantly reduce the computa- tional work required to construct the linear system. in addition, computation time is reduced by employing effi- cient analytic integration formulas for the analysis of the orthotropic singular and hypersingular integrals.