Stabilization of the numerical priming to stabilization phenomenon in the crushing of a composite panel using local and diffuse damage laws

Christine Espinosa (1) , F. Tostain , Samuel Rivallant (1)

1 ICA - Institut Clément Ader

This study lies within the general scope of damage and rupture prediction during transverse crash (edge crushing) of a beveled composite plate using numerical simulation. Structures under consideration are aeronautical composite structures in purpose of design and certification. The present study proposes as an enhancement of an existing crushing model the introduction of a continuous softening law to represent the highly complex local fragmentation process at the vicinity of the crushing process on the ground. It is shown how the added softening stress strain law helps the numerical stability and the reproduction of all the processes in the different phases of the crushing process

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

Christine Espinosa, F. Tostain, Samuel Rivallant. Stabilization of the numerical priming to stabilization phenomenon in the crushing of a composite panel using local and diffuse damage laws. VII European Congress on Computational Methods in Applied Sciences and Engineering (ECCOMAS 2016), 2016, Crete, Greece. ⟨hal-02048280⟩