A two-dimensional flow model for the process simulation of complex shape composite laminates

A numerical ßow-compaction model is developed and implemented in a Þnite element code to simulate the multiple physical phenomena involved during the autoclave processing of Þbre-reinforced composite laminates. The model is based on the e¤ective stress formulation coupled with a Darcian ßow theory. A Galerkin approach is employed to discretize the weak form of the governing equations. The current formulation successfully describes the compaction behaviour of complex shape laminates caused by ßow of the resin. A parametric study is performed to investigate the e¤ect of the material properties on the compaction of angle-shaped composite laminates. It is found that the Þbre bed shear modulus signiÞcantly a¤ects the compaction behaviour in the corner sections of curved laminates while the resin viscosity and Þbre bed permeability a¤ect the compaction rate of the laminate. Copyright