Effect of cell morphology on the compressive properties of open-cell aluminum foams

被引:227
作者
Nieh, TG
Higashi, K
Wadsworth, J
机构
[1] Univ Calif Lawrence Livermore Natl Lab, Livermore, CA 94551 USA
[2] Univ Osaka Prefecture, Coll Engn, Dept Met & Mat Sci, Sakai, Osaka 5998531, Japan
来源
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING | 2000年 / 283卷 / 1-2期
关键词
metallic foams; compression; tomography; cellular structure;
D O I
10.1016/S0921-5093(00)00623-7
中图分类号
TB3 [工程材料学];
学科分类号
0805 ; 080502 ;
摘要
The mechanical properties of open-cell 6101 aluminum foams with different densities ( similar to 5-10%) and morphologies (4-16 cells cm(-1)) were characterized in compression. It was found that density is the primary variable controlling the modulus and yield strength of foams. The effects of other variables such as cell size and shape were also studied. Whereas the cell size appears to have a negligible effect on the strength of foams, at a fixed density, the cell shape was shown to effect the strength of foams. In the present paper, theoretical models are offered to explain the differences in modulus and strength caused by the differences in cell shape and size. (C) 2000 Elsevier Science S.A. All rights reserved.
引用
收藏
页码:105 / 110
页数:6
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