Solving Some Problems of Crack Mechanics for a Normal Edge Crack in Orthotropic Solid Within the Cohesive Zone Model Approach

A problem of an edge crack with a fracture process zone in semi-infinite orthotropic planes under the pure- and mixed-mode loading (I II modes) was studied. cohesive different lengths opening sliding modes (multiple zone) used to simulate zone. The smooth closure condition defines two modes. that is normal plate formulated terms integral equations for unknown displacement discontinuity along crack. collocation method applied singular Cauchy kernel gave critical loads respective discrete tractions separations. These are non-linear since dependence on taken according potential-based traction–separation law. An iterative procedure satisfy closure. generalization potential, well-known literature, generate traction field. potential combines pure-mode laws without mode-mixity parameters. Two types generalized functions were considered, analysis carried out. Numerical solutions presented separations state when both trapezoidal shaped. Comparison loci obtained potentials allowed us conclude type strongly influences