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| A comparative study of energy absorption performance of non-convex multi-corner and multi-cell square columns subject to axial crush |
| Received:March 22, 2012 Revised:August 28, 2012 |
| View Full Text View/Add Comment Download reader |
| DOI：10.7511/jslx201304008 |
| KeyWord:thin-walled structure non-convex profile axial crush energy absorption multi-cell column |
| Author | Institution |
| 刘书田 |
大连理工大学 工程力学系 工业装备结构分析国家重点实验室,大连 |
| 唐智亮 |
大连理工大学 工程力学系 工业装备结构分析国家重点实验室,大连 |
| 张宗华 |
大连理工大学 工程力学系 工业装备结构分析国家重点实验室,大连 |
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| Abstract: |
| Energy absorption of non-convex multi-corner thin-walled columns subject to axial crush were investigated,and their performance were compared with square and multi-cell square columns.First,the three types of columns with the same wall thickness were investigated using explicit non-linear finite element software ANSYS/LS-DYNA.And then,investigation of their energy absorption under three different requirements were carried out,which were the same amount of material usage,the same amount of energy absorption and the same maximum peak force.The results showed,non-convex multi-corner columns were superior to square column as energy absorber no matter in specific energy absorption or crush force efficiency.Non-convex multi-corner columns performed better than multi-cell square column except for crush force efficiency in some cases. |