Composite reinforcement forming simulation: a multiscale approach

The finite elements presented in this paper for tex tile fabric forming are composed of woven unit cells. The mechanical behaviour of these is analyzed by 3D computations at the mesoscale regarding biaxial tensions, in plane shear and bending properties. These elements are efficient because they are close to th e physics of the woven cell while avoiding the very large number of unknowns in the d iscrete approach. Forming simulations on single ply, multi-ply and 3D interlo ck will be presented and show the efficiency of the approach. In particular the impor tance of the in-plane shear and bending behaviour will be emphasized.

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