Analytical and numerical simulation of the behavior of 2.5D braided interlock composite tubes under crush loading.
Résumé
This article deals with the experiment and numerical simulation of the crash of composite
tubes made of 2,5D-braided composite. In a first part, we present the material
characterization at different strain rates as well as the results of tubes which have been tested
in a drop-weight tower. In a second part, we describe the bi-phase material model which has
been developed. It is based on Drozdov’s modelling for thermoplastic matrix and on the
kinking modelling for fibers. In a last part, we present the experiment and numerical
simulations correlations and we will conclude more particularly about the good predicting
the value of energy absorption.
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