超轻海绵铝的力学性能研究

doi:10.13228/j.boyuan.issn1006-6543.20150105

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Abstract The aluminum sponge with porosity of 92%-98% was prepared by the combined method of complex model casting and seepage flow techniques， and the flammable polyurethane foam ball was employed as filling material. The mechanical properties of aluminum sponge were investigated. The results show that the compression curve of aluminum sponge is approximately divided into three stages： linear elastic stage， platform stage and densification stage. The pore structure is easy to be damaged due to its thin pore edge， and the yield strength of aluminum sponge decreases rapidly with the increase of porosity. The energy absorption curve of aluminum sponge is approximately linear， and the energy absorption efficiency at the platform stage is between 60%-80%.

Key words： aluminum sponges mchanical properties energy absorption capability energy absorption efficiency

Received: 26 November 2015 Published: 15 December 2016

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	Articles by authors
	WANG Zhan-Guang
	ZHEN Ying-Hong
	PENG Kai-Qi
	WANG Yang

Cite this article:

WANG Zhan-Guang,ZHEN Ying-Hong,PENG Kai-Qi, et al. Study on mechanical properties of ultra light aluminum sponge[J]. , 2016, 26(06): 41-45.

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http://edit.chinamet.cn/Jweb_fmyjgy/EN/10.13228/j.boyuan.issn1006-6543.20150105 OR http://edit.chinamet.cn/Jweb_fmyjgy/EN/Y2016/V26/I06/41