Knowledge Management System of Institue of Mechanics, CAS
| 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.
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| Source Publication | International Journal of Solids and Structures
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| 2005 | |
| Volume | 42Issue:9-10Pages:2575-2600 |
| ISSN | 0020-7683 |
| Abstract | 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. |
| Subject Area | 力学 |
| DOI | 10.1016/j.ijsolstr.2004.09.050 |
| Indexed By | SCI ; EI |
| Language | 英语 |
| WOS ID | WOS:000226947800007 |
| WOS Keyword | THIN-WALLED SECTIONS ; BENDING COLLAPSE ; TOP-HAT ; EXTRUSIONS ; SQUARE ; COLUMNS ; DESIGN |
| WOS Research Area | Mechanics |
| WOS Subject | Mechanics |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://dspace.imech.ac.cn/handle/311007/16580 |
| Collection | 力学所知识产出(1956-2008) |
| Corresponding Author | Song, HW (reprint author), Chinese Acad Sci, Inst Mech, Beijing 100080, Peoples R China. |
| Recommended Citation 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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