Composite laminate crack problems using the boundary collocation method

Stress intensity factors for an inclined and/or eccentric crack in a finite orthotropic lamina

“…Accurate determination of stress intensity factor of finite lamina is required for ensuring reliable design of the structures. Boundary collocation method has been proved to be an effective computational tool and has been successfully applied to variety of crack problems of isotropic materials (Chen and Chen, 1981;Newman, 1976;Ukadgaonkar and Murali, 1991;Wang et.al, 2003) and anisotropic materials (Wang and Chang, 1994;Woo and Samson, 1993). Various methods like modified mapping collocation method (Bowie and Freese, 1972), boundary integral equations (Tan and Gao, 1992) and singular integral equation formulation (Ryan and Mall, 1989) are successfully applied to solve the problems of finite orthotropic lamina / laminates containing edge / central crack.…”