Simulations of one-layer and multi-layer composite forming

• Main Authors: Hamila, N, Helenon, F, Boisse, P, Mabrouki, T, De Luycker, E, Chatel, S
• Format: Conference Proceeding
• Language: English
• ISSN: 0094-243X
• DOI: 10.1063/1.2729649

The use of composite materials is strongly increasing in aeronautics industry. Consequently there is a need for numerical analysis of these composite components. To perform accurately the service live analyses, it is necessary to know the direction and the density of the fibres at any point of the part. These directions are mainly depending of the forming of the composite. Because they are woven, textile reinforcements can reach very large in-plane shear strain during manufacturing. A numerical tool that simulates this forming process permits to envisage the feasibility of a process without defect but also to know the directions of the reinforcements after shaping. These directions condition strongly the mechanical behaviour of the final textile composite structure. In addition, the angles between warp and weft yarns influence the permeability of the reinforcement and thus the filling of the resin in the case of a liquid moulding process. The forming of composite reinforcement can be made on a single ply or simultaneously on several plies. In this paper models for the single woven ply forming are compared. The extension to multiply forming simulation is then considered.