SIMULATION OF COMPOSITE REINFORCEMENT FORMING FOR RTM PROCESS

Abstract

Resin Transfer Moulding process gives composite parts in two stages: the reinforcement is first formed, and then a thermosetting resin is injected in this preform. Composite reinforcements used are dry woven fabrics. The mechanical behaviour of these materials is specific. It can be obtained experimentally by biaxial and shear tests. Simulations of these tests, by 3D finite element method, give complementary information to understand the deformation mechanisms. At least, the simulation of composite reinforcement forming gives the map of angle variation between the weft and warp yarns. The comparison between obtained and maximum angles validates or not the ability to realize the composite part using this process, with this reinforcement.