Deformation mechanisms of spherical cell porous aluminum under quasi-static compression

被引：28
作者：
Fan, Zhiqiang [1 ]
Zhang, Bingbing [2 ]
Gao, Yubo [1 ]
Guan, Xuefeng [1 ]
Xu, Peng [1 ]
机构：
[1] North Univ China, Sch Sci, Taiyuan 030051, Shanxi, Peoples R China
[2] North Univ China, Sch Chem & Environm Engn, Taiyuan 030051, Shanxi, Peoples R China
来源：
SCRIPTA MATERIALIA | 2018年 / 142卷
关键词：
Aluminum foams; Deformation bands; Digital image correlation; Failure mode; Strain concentration; FOAM; FAILURE;
D O I：
10.1016/j.scriptamat.2017.08.019
中图分类号：
TB3 [工程材料学];
学科分类号：
0805 ; 080502 ;
摘要：
Quasi-static compression tests for a novel type of spherical cell porous aluminum prepared by the space-holder method were conducted. Formation and evolution mechanisms of deformation bands on the macro and micro scale were monitored and discussed by using a digital image correlation,procedure. Effect of micro strain concentrations on the formation process and morphology of deformation bands at the macro level was analyzedin detail. In total three deformation modes of spherical cells and four failure modes of cell membranes including bending, shear, combined compression-shear, and eventually tearing were identified. (C) 2017 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved.
引用
收藏
页码：32 / 35
页数：4
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