29. Simulation and Analysis of Residual Stresses in a Laminated Graphite/Epoxy Composite Plate Using HyperMesh

Composite plate structures find numerous applications in the automotive, military and aerospace industries. The residual stresses simulation and analysis are very important in composites design as the material strength is estimated based on residual stresses also. Hence, an accurate understanding of design, simulation, and analysis of residual stresses is required to estimate structural behavior of laminated composite. The arrangement of ply is one of the key roles to check the residual stresses in a laminated composite plate. In the present work, a number of finite element analyses have been carried out to estimate residual stresses in composite plate and simulate with HyperMesh for validation. The location of plies in laminated composites and its effects on residual stresses subjected to uniformly distributed load are analyzed. Results show the residual stresses behavior with the angle location of plies in the graphite/epoxy composite plate.