Thermoelastic fracture behavior of bimodular functionally graded skin-stiffener composite panel with embedded inter-laminar delamination

In the present work strain energy release rate as a fracture parameter has been used to evaluate the skin-stiffener debonding in stiffened composite panel with functionally graded (FG) bimodular material property under thermo-mechanical coupled field. The influence of ply lay-up and interaction of residual thermal stresses on the skin-stiffener has been investigated. Stress-dependent elasticity problem of bimodular stiffened panel made up of...