3D analysis of cross ply laminates such as [0°_6/90°_6]s, and [90°_6/0°_6] was performed by using a nonlinear finite element coding. Interlaminar stress distributions around a circle hole curved free-edge in these laminates were calculated and the...
3D analysis of cross ply laminates such as [0°_6/90°_6]s, and [90°_6/0°_6] was performed by using a nonlinear finite element coding. Interlaminar stress distributions around a circle hole curved free-edge in these laminates were calculated and the delamination strengths under the pin-loaded joints were predicted by using the new modified delamination failure criterion. Especially, 3D non-linear contact analysis of cross-ply laminates were conducted to investigate the effect of friction.