Static three-point bending behavior of aluminum foam sandwich

被引：50
|
作者：
Zu, Guoyin [1 ]
Song, Binna [1 ]
Zhong, Zhaoyang [1 ]
Li, Xiaobing [1 ]
Mu, Yongliang [1 ]
Yao, Guangchun [1 ]
机构：
[1] Northeastern Univ, Sch Met & Mat, Shenyang 110004, Peoples R China
来源：
JOURNAL OF ALLOYS AND COMPOUNDS | 2012年 / 540卷
基金：
中国国家自然科学基金;
关键词：
Aluminum foam sandwich; Three-point bending; Failure mode; Fracture; COMPRESSIVE PROPERTY; INDENTATION;
D O I：
10.1016/j.jallcom.2012.06.079
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
Aluminum foam sandwiches with a metallic bonding between face sheets and foam core have been produced by a powder metallurgy method. Static three-point bending tests with different span were carried out to investigate the deformation and failure behavior. The fracture surface of the typical measured specimens was observed. It was found that load-deflection curve of AFS with different face sheet thickness under different span bending tests exhibited three distinct regions: a linear elastic region, a rapid load drop region and a plateau region. Three failure modes, indentation, core shear and plastic hinge, were observed simultaneously during the bending tests. Fracture analysis indicated that an excellent bonding existed between face sheets and foam core due to the retained cohesion between them. (C) 2012 Elsevier B.V. All rights reserved.
引用
收藏
页码：275 / 278
页数：4
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