Characterization and modeling of localized compaction in aluminum foam

被引：19
作者：
Issen, KA [1 ]
Casey, TP [1 ]
Dixon, DM [1 ]
Richards, MC [1 ]
Ingraham, JP [1 ]
机构：
[1] Clarkson Univ, Dept Mech & Aeronaut Engn, Potsdam, NY 13699 USA
来源：
SCRIPTA MATERIALIA | 2005年 / 52卷 / 09期
基金：
美国国家科学基金会;
关键词：
compression test; aluminum; foams; yield phenomena; analytical methods;
D O I：
10.1016/j.scriptamat.2004.12.031
中图分类号：
TB3 [工程材料学];
学科分类号：
0805 ; 080502 ;
摘要：
Uniaxial compression tests on aluminum foam reveal formation of bands of localized compaction, initiating near peak stress, and becoming clearly defined during the subsequent stress drop. Band formation is modeled as a bifurcation from uniform deformation due to a constitutive instability. Theoretical predictions and experimental observations are in reasonable agreement. (C) 2005 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved.
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页码：911 / 915
页数：5
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