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Proceedings Paper

Strength enhancement of sandwich panel under impact loading
Author(s): H. Zhao; I. Nasri; H. J. Li
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Paper Abstract

This paper presents a study of the strength enhancement under impact loading of metallic cellular materials as well as sandwich panels with cellular core. A testing method using 60mm diameter Nylon Hopkinson pressure bars is used to investigate the rate sensitivity of various metallic cellular materials as honeycombs, foams. Finally, an inversed perforation test on sandwich panels with an instrumented pressure bar is also presented. Such a new testing setup provides piercing force time history measurement, generally inaccessible. Testing results show a notable enhancement of piercing forces, even though the skin aluminum plates and the foam cores are nearly rate insensitive.

Paper Details

Date Published: 25 August 2009
PDF: 4 pages
Proc. SPIE 7375, ICEM 2008: International Conference on Experimental Mechanics 2008, 73756B (25 August 2009); doi: 10.1117/12.839374
Show Author Affiliations
H. Zhao, Ecole Normale Supérieure de Cachan, CNRS, Univ. Sud Paris (France)
I. Nasri, Ecole Normale Supérieure de Cachan, CNRS, Univ. Sud Paris (France)
H. J. Li, Yanshan Univ. (China)


Published in SPIE Proceedings Vol. 7375:
ICEM 2008: International Conference on Experimental Mechanics 2008
Xiaoyuan He; Huimin Xie; YiLan Kang, Editor(s)

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