Journal
MATERIALS & DESIGN
Volume 88, Issue -, Pages 258-268Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.matdes.2015.08.152
Keywords
Auxetic foam; Energy absorption; Thin-walled tube; Crashworthiness; Negative Poisson's ratio
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This present study investigates experimentally and numerically the crush response and energy absorption performances of auxetic foam-filled square tubes under quasi-static axial loading. Three different structures: empty, conventional and auxetic foam-filled square tubes have been compared and examined with respect to the deformation modes and load-displacement curves. Standard compression tests were conducted on the tubes to evaluate the influence of auxetic foam in the energy absorption of empty tubes. Moreover, results from computer simulation have also been supplemented to further examine the abovementioned effect It is discovered that the auxetic foam-filled square tube is superior to empty and conventional foam-filled square tubes in terms of all studied crashworthiness indicators. (C) 2015 Elsevier Ltd. All rights reserved.
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