Citation

Tan W, Falzon BG, Price M. Int. J. Crashworthiness 2015; 20(1): 60-77.

Copyright

(Copyright © 2015, Informa - Taylor and Francis Group)

DOI

10.1080/13588265.2014.972122

PMID

unavailable

Abstract

The capability to numerically model the crushing behaviour of composite structures will enable the efficient design of structures with high specific energy absorption capacity. This is particularly relevant to the aerospace and automotive industries where cabin structures need to be shown to be crashworthy. In this paper, a three-dimensional damage model is presented, which accurately represents the behaviour of composite laminates under crush loading. Both intralaminar and interlaminar failure mechanisms are taken into account. The crush damage model was implemented in ABAQUS/Explicit as a VUMAT subroutine. Numerical predictions are shown to agree well with experimental results, accurately capturing the intralaminar and interlaminar damage for a range of stacking sequences, triggers and composite materials. The use of measured material parameters required by the numerical models, without the need to 'calibrate' this input data, demonstrates this computational tool's predictive capabilities.