Dynamic Indentation and Penetration Properties of Aluminium Foams

Abstract:

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.

• Periodical: Key Engineering Materials (Volumes 340-341)
• Pages: 383-388
• DOI: https://doi.org/10.4028/www.scientific.net/KEM.340-341.383
• Online since: June 2007
• Authors: Jian Hu Shen, Guo Xing Lu
• Keywords: Aluminum Foam, Dynamic Penetration, Finite Element Model (FEM), Fracture

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