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Mechanical and geometrical approaches applied to composite fabric forming

Abstract : In this paper, we are interested in the forming of composite fabric by deep-drawing. Two approaches (geometrical and mechanical) are proposed for the simulation of the composite fabric forming. The geometrical approach is based on a fishnet model. It is well adapted to preliminary design phase and to give a suitable estimate of the resulting flat patterns. The mechanical approach is based on a meso-structural approach. It allows us to take into account the mechanical properties of composite fabric (fibres and resin) and the various dominant modes of deformation of fabrics during the forming process. During simulation of composite fabric forming, where large displacement and relative rotation of fibres are possible, severe mesh distortions occur after a few incremental steps. Hence an automatic mesh generation with remeshing capabilities is essential to carry out the finite element analysis. Some numerical simulations of forming process are proposed and compared with the experimental results in order to demonstrate the efficiency of the proposed approaches.
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Submitted on : Tuesday, September 10, 2019 - 6:01:38 PM
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Abel Cherouat, Houman Borouchaki, Laurence Giraud-Moreau. Mechanical and geometrical approaches applied to composite fabric forming. International Journal of Material Forming, Springer Verlag, 2010, 3 (S2), pp.1189-1204. ⟨10.1007/s12289-010-0692-5⟩. ⟨hal-02283408⟩



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