Journal
MECHANICS OF ADVANCED MATERIALS AND STRUCTURES
Volume 17, Issue 5, Pages 366-376Publisher
TAYLOR & FRANCIS INC
DOI: 10.1080/15376494.2010.488612
Keywords
innovative materials; energy absorption; experimental tests; numerical analysis
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The use of innovative materials as energy absorbers for motorbike helmets might have a significant impact on the safety of motorbike riders, currently among the most vulnerable road users. In this regard, the effect of the interaction between aluminum honeycombs and polymeric foams in the design of innovative liners is investigated by studying their behavior under compressive loading conditions. Quasi-static and impact compressive loadings were applied to samples of two-layered structures made of aluminum honeycombs and expanded polystyrene foams, in order to observe their deformation modes, determine their energy absorption properties and the influence of the loading speed in their mechanical response. The same tests were performed on the expanded polystyrene foams and on the honeycomb layers separately. The results were compared and it was shown that although aluminum honeycombs alone offer the highest energy absorption levels, their coupling with EPS foams is preferred for the protection of the head.
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