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Article Dans Une Revue Composites Part B: Engineering Année : 2015

Experimental study of impact energy absorption by reinforced braided composite structures: Dynamic crushing tests

Olivier Dorival
Pablo Navarro
Steven Marguet
Jean-François Ferrero

Résumé

High speed dynamic loadings such as small engine fragments, bird strike, tyre impact or ice debris are a concern for many aeronautical structures, as they can create severe damages raising safety issues. A strategy to develop dedicated mechanisms for energy absorption of high speed dynamic impact debris at sub-component level is therefore proposed by means of several reinforced foam-woven composite structures. Among the tests for evaluating the mechanical performances, dynamic crushing tests were performed on a slice of such reinforced composite structures to evaluate their energy absorption. Using simultaneously load signal and fast camera imaging, the tests were analyzed to provide important informations such as damage mechanisms and displacement-load-energy absorption values. At the end, quantitative criterions are presented in order to distinguish the designs that have a good potential for absorbing shock energy and for getting a better understanding for designing reinforced composite structures.
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Dates et versions

hal-01183142 , version 1 (06-08-2015)

Identifiants

Citer

Olivier Dorival, Pablo Navarro, Steven Marguet, C Petiot, M Bermudez, et al.. Experimental study of impact energy absorption by reinforced braided composite structures: Dynamic crushing tests. Composites Part B: Engineering, 2015, 78, pp.244-255. ⟨10.1016/j.compositesb.2015.03.083⟩. ⟨hal-01183142⟩
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