Tension/Torsion Loading of Composite Laminates with Free-Edge Boundary Conditions

A finite element analysis of a family of quasi-isotropic graphite/epoxy laminates was conducted for tension, torsion, and combined tension/torsion loading. investigate The model was employed to the effects of delaminations on torsional stiffness and also to evaluate the total strain energy release rates associated with these delaminations.