Journal
COMPOSITE STRUCTURES
Volume 68, Issue 4, Pages 491-503Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.compstruct.2004.04.015
Keywords
energy absorber; composite structures; failure mechanism; Formula One racing car; finite element analyses
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The present paper describes an experimental and numerical investigation on energy absorbers for Formula One side impact and steering column impact. The crash tests are performed measuring the load-shortening diagram and the energy absorbed by the structure. A finite element model is then developed using the non-linear, explicit dynamic code LS-DYNA. To set up the numerical model, tubes crushing testing are conducted to determine the material failure modes and to characterise them with LS-DYNA. The results presented in this study show that the composite structural components of the investigated Formula One racing car possess high value of specific absorbed energy and crash load efficiency around 1.1. The finite element simulations accurately predict the overall shape, magnitude and pulse duration in all the types of impact as well as the deformation and failure of the structures. Comparing the numerical data of the specific absorbed energy to the experimental results, the differences are around 10%. (c) 2004 Elsevier Ltd. All rights reserved.
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