Tensile post-impact behaviour of thin carbon/epoxy and glass/epoxy hybrid woven laminates – Part II: Numerical study

A. Rogani (1) , Pablo Navarro (1) , Steven Marguet (1) , Jean-François Ferrero (1) , C. Lanouette (2)

1 ICA - Institut Clément Ader
2 Airbus Helicopters

This article concerns the modelling of post-impact damage propagation in thin woven composite laminates. Simulations of low velocity impacts and post-impact quasi-static tension are performed on single-material and hybrid laminates. The modelling is based on the semi-continuous approach implemented into the explicit finite element code RADIOSS. The bundles are modelled with rod elements and a specific damageable shell element is used to stabilize this truss structure. Improvements are brought with the introduction of a compressive failure criterion for the rod elements and the development of a pseudo-plastic law with damaging for in in-plane shear. The results provided by the modelling well correlates the experimental observations in terms of damage propagation and load-displacement curves for all the configurations studied.

Mots clés: Woven composites; thin laminates; hybrid laminates; post-impact behaviour; explicit FE modeling; damage

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

A. Rogani, Pablo Navarro, Steven Marguet, Jean-François Ferrero, C. Lanouette. Tensile post-impact behaviour of thin carbon/epoxy and glass/epoxy hybrid woven laminates – Part II: Numerical study. Composite Structures, 2019, 230, pp.111455. ⟨10.1016/j.compstruct.2019.111455⟩. ⟨hal-02305928⟩