Dynamic Indentation and Penetration Properties of Aluminium Foams

Abstract:

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Failure of aluminium foams due to dynamic indentation and penetration is very common in their application such as light-weight structural sandwich panels, packing materials and energy absorbing devices. This requires a sound understanding of deformation and energy absorption mechanisms of the aluminium foams as well as the effect of impact velocity. In this study, a finite element analysis using ABAQUS is conducted for the dynamic indentation/penetration process of aluminium foams under a rigid flat-headed indenter. The indenter is pushed into the foam either at a constant velocity or with an initial velocity. Two mechanisms exist: compression of the foam ahead of the indenter and fracture along the indenter edge. Effect of impact velocity is noted on the size of a localized deformation and the total energy absorbed.

Info:

Periodical:

Key Engineering Materials (Volumes 340-341)

Edited by:

N. Ohno and T. Uehara

Pages:

383-388

DOI:

10.4028/www.scientific.net/KEM.340-341.383

Citation:

J. H. Shen and G. X. Lu, "Dynamic Indentation and Penetration Properties of Aluminium Foams", Key Engineering Materials, Vols. 340-341, pp. 383-388, 2007

Online since:

June 2007

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Price:

$35.00

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