Partition Energy Absorption of Axially Crushed Aluminum Foam-Filled Hat Sections

doi:10.1016/j.ijsolstr.2004.09.050

IMECH-IR > 力学所知识产出(1956-2008)

	Partition Energy Absorption of Axially Crushed Aluminum Foam-Filled Hat Sections
	Song HW(宋宏伟); Fan ZJ; Yu G(虞钢); Wang QC; Tobota A; Song, HW (reprint author), Chinese Acad Sci, Inst Mech, Beijing 100080, Peoples R China.
发表期刊	International Journal of Solids and Structures
	2005
卷号	42 期号:9-10 页码:2575-2600
ISSN	0020-7683
摘要	The "interaction effect" between aluminum foam and metal column that takes place when foam-filled hat sections (top-hats and double-hats) are axially crushed was investigated in this paper. Based on experimental examination, numerical simulation and analytical models, a systemic approach was developed to partition the energy absorption quantitatively into the foam filler component and the hat section component, and the relative contribution of each component to the overall interaction effect was therefore evaluated. Careful observation of the collapse profile found that the crushed foam filler could be further divided into two main energy-dissipation regions: densified region and extremely densified region. The volume reduction and volumetric strain of each region were empirically estimated. An analytical model pertinent to the collapse profile was thereafter proposed to find the more precise relationship between the volume reduction and volumetric strain of the foam filler. Combined the superfolding element model for hat sections with the current model according to the coupled method, each component energy absorption was subsequently derived, and the influence of some controlling factors was discussed. According to the finite element analysis and the theoretical modeling, when filled with foam, energy absorption was found to be increased both in the hat section and the foam filler, whereas the latter contributes predominantly to the interaction effect. The formation of the extremely densified region in the foam filler accounts for this effect.
学科领域	力学
DOI	10.1016/j.ijsolstr.2004.09.050
收录类别	SCI ; EI
语种	英语
WOS记录号	WOS:000226947800007
关键词[WOS]	THIN-WALLED SECTIONS ; BENDING COLLAPSE ; TOP-HAT ; EXTRUSIONS ; SQUARE ; COLUMNS ; DESIGN
WOS研究方向	Mechanics
WOS类目	Mechanics
引用统计	被引频次：93[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://dspace.imech.ac.cn/handle/311007/16580
专题	力学所知识产出(1956-2008)
通讯作者	Song, HW (reprint author), Chinese Acad Sci, Inst Mech, Beijing 100080, Peoples R China.
推荐引用方式 GB/T 7714	Song HW,Fan ZJ,Yu G,et al. Partition Energy Absorption of Axially Crushed Aluminum Foam-Filled Hat Sections[J]. International Journal of Solids and Structures,2005,42,9-10,:2575-2600.
APA	宋宏伟,Fan ZJ,虞钢,Wang QC,Tobota A,&Song, HW .(2005).Partition Energy Absorption of Axially Crushed Aluminum Foam-Filled Hat Sections.International Journal of Solids and Structures,42(9-10),2575-2600.
MLA	宋宏伟,et al."Partition Energy Absorption of Axially Crushed Aluminum Foam-Filled Hat Sections".International Journal of Solids and Structures 42.9-10(2005):2575-2600.

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