Abstract
Mathematical formulation and numerical solution of the 3-D elastodynamic contact problem for body with cracks have been considered here. Diffraction of the normally incident harmonic tension-compression P-waves and shear deformation SH- waves on the penny sharped crack in the 3-D space is studied with considering contact interaction of the crack edges. Boundary element method (BEM) along with constrained optimization algorithm which is based on variational principles and nonsmooth analysis has been used for the considered problem solution. Influence of the crack edges contact interaction on the stress intensity factor (SIF) have been studied.
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