Open Access

ARTICLE

Study on Dynamic Energy Absorption Ability of Closed-cell Si-Al Foam Metals Considering Geometry Size

Yishan Pan¹, Xiangfeng Lv, Zhonghua Li, Xiaochun Xiao

1 School of Mechanics and Engineering, Liaoning Technical University, Fuxin 123000, China; State Key Laboratory for GeoMechanics and Deep Underground Engineering ,China University of Mining & Technology, Xuzhou 221008, China

Structural Longevity 2011, 6(3), 127-132. https://doi.org/10.3970/sl.2011.006.127

Abstract

Geometry size has a great influence on energy absorption ability of closed-cell foam metals. Study on energy absorption ability of closed-cell Si-Al foam metals considering geometry size by impact experiment method. The results show that the strain and absorbing energy value are decreasing with the geometry size increasing, and also lead to the hole wall rupture or whole instability. The best height-width ratio for cube and cylinder are 1.0–1.5 and 1.0–2.0, respectively. With the increasing of material diameter, the compressive strength increasing quickly, but the strain reduces. It is clearly that height-width ratio 1.0 is better for cube and cylinder.

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