Multi-layered multi-material finite element for crashworthiness studies

Daniel Coutellier (1) , Patrick Rozycki (2)

1 LAMIH - Laboratoire d'Automatique, de Mécanique et d'Informatique industrielles et Humaines - UMR 8201
2 Pam System International

The materials used in the field of ground transportation are becoming increasingly complex and it is usual to find numerous composite parts. The potential for utilization is generally verified through the numerical simulations, especially due to the increase in severe safety criteria. This paper deals with a finite element intended to describe numerically the behaviour of multi-layered multi-materials (combination of metallic and composite plies). A complete description of this element is presented with the taking into account of the resin ductility and the asymmetrical tension/compression behaviour for composite plies. The latter are performed by the introduction of an isotropic hardening law and a compressive multiplier depending on strain. Some numerical validations will be produced to verify the developments.

Mots clés: Finite element analysis; Impact behaviour; Multi-material; Layered structures

Domaines: Mécanique des matériaux [physics.class-ph]

Daniel Coutellier, Patrick Rozycki. Multi-layered multi-material finite element for crashworthiness studies. Composites Part A: Applied Science and Manufacturing, 2000, 31 (8), pp.841-851. ⟨10.1016/S1359-835X(00)00022-1⟩. ⟨hal-01007092⟩