RESIDUAL STRESSES ANALYSIS OF LAMINATED GRAPHITE/EPOXY COMPOSITE PLATES USING HYPERMESH

The structures made of laminated composites are used in various engineering applications like in military, aerospace and automotive Industries. To design the composite, the precision learning of structural behavior is required. In this connection, estimation of residual stresses is an important criterion for predicting the behavior of laminated composite. Residual stresses are developed when the laminate is subjected to temperature change. The residual stresses of the composite laminate are estimated by considering the temperature change of -75o on the specimen and analytical method is used for the same. In the analytical method, the stresses are developed for piles of orientation (0° /90°) in the laminated composite and simulate the analytical values with numerical analysis is developed for validation. This study aims to examine the residual stresses of the Graphite/Epoxy layer composite through analytical and simulated methods using HYPERMESH. The residual stress analysis includes all the types of stress behavior in diagrammatic form and results are developed. For validation, the simulated values and the analytical values are compared with the required accuracy.