MODELING OF DELAMINATION IN A STRATIFIED COMPOSITE USING A RIEMANN ALGORITHM

This paper deals with the interply delamination modelisation in lamina ted composites with ceramic matrix, under impact. This physical phenom ena is a contact lost between two plies. The developed approach is a s liding interface method. It consists of the resolution of Riemann's pr oblem, based on a constitutive damage law of the interface ply and tak ing into account the coupling between different damage mechanics. The solver is implanted in the code DYNA3D. Its mean interest is the accur acy of the normal velocity calculation at the contact interface.