Crash of 3D-braided thermoplastic tubes: numerical and analytical tools for behaviour prediction

Cyril Priem (1) , Patrick Rozycki (1) , Ramzi Othman (1) , Damien Guillon (2)

1 GeM - Institut de Recherche en Génie Civil et Mécanique
2 Cetim Nantes

This article deals with the experiment and numerical simulation of the crash ofcomposite tubes made of 2,5D-braided composite. First we present the materialcharacterization at different strain rates as well as the results of tubes which have been testedin a drop-weight tower. In a second part, simple analytical tools results are described andtheir results are compared with experimental ones. In a third part, we describe the bi-phasematerial model which has been developed. It is based on Drozdov’s modelling forthermoplastic matrix and on the kinking modelling for fibers. Finally we present theexperiment and numerical simulations correlations and we will conclude more particularlyabout the good predicting the value of energy absorption.

Mots clés: 2.5D braided; Thermoplastic composite; Crash; Simulation

Domaines: Mécanique [physics.med-ph]; Matériaux

Cyril Priem, Patrick Rozycki, Ramzi Othman, Damien Guillon. Crash of 3D-braided thermoplastic tubes: numerical and analytical tools for behaviour prediction. XIII International Conference on Computational Plasticity. Fundamentals and Applications - COMPLAS XIII, Sep 2015, Barcelone, Spain. ⟨hal-01240750⟩