Experimental and analytical studies of a novel aluminum foam filled energy absorption connector under quasi-static compression loading

被引:21
作者
Wang, Yonghui [1 ,2 ]
Liew, J. Y. Richard [3 ,4 ]
Lee, Siew Chin [3 ]
Wang, Wei [1 ,2 ]
机构
[1] Harbin Inst Technol, Minist Educ, Key Lab Struct Dynam Behav & Control, Harbin 150090, Peoples R China
[2] Harbin Inst Technol, Sch Civil Engn, Harbin 150090, Peoples R China
[3] Natl Univ Singapore, Dept Civil & Environm Engn, Singapore 117576, Singapore
[4] Nanjing Tech Univ, Coll Civil Engn, Nanjing 211816, Jiangsu, Peoples R China
基金
中国国家自然科学基金;
关键词
Aluminum foam; Analytical model; Energy absorption connector; Pleated plate; STEEL SANDWICH PANELS; DYNAMIC-RESPONSE; PLASTIC RING; BLAST; PERFORMANCE; FAILURE; FACADES; IMPACT; DENSIFICATION; OPTIMIZATION;
D O I
10.1016/j.engstruct.2016.10.020
中图分类号
TU [建筑科学];
学科分类号
0813 ;
摘要
A novel energy absorption connector with pleated plate and aluminum foam as energy absorber was proposed to be inserted between the blast resistant fa ade and building to absorb blast energy and reduce blast load transferred to the building. The energy absorption performance of the connector under quasi-static compression loading was first studied by using experimental method. The deformation mechanisms were observed from the experiment and three different deformation processes were also identified. The effects of aluminum foam, pleated plate thickness and angle theta(o) (the angle between flat plate and pleated plate) as well as pleat number on the energy absorption performance of the connector were experimentally investigated, which showed that the energy absorption capacity could be improved by filling the connector with aluminum foam and increasing the pleated plate thickness, angle theta(o) and pleat number. Moreover, an analytical model for determining the load-displacement curve of the energy absorption connector was also developed and the predictions by the analytical model were proven to be reasonable by comparing with the experimental data. (C) 2016 Elsevier Ltd. All rights reserved.
引用
收藏
页码:136 / 147
页数:12
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