期刊
THIN-WALLED STRUCTURES
卷 68, 期 -, 页码 156-163出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.tws.2013.03.014
关键词
Multi-cell; Columns; Axial compression; Energy absorption; Experimental test
资金
- National Natural Science Foundation of China [11002060]
- Fundamental Research Funds for the Central Universities, HUST [2012QN025]
Multi-cell metal columns were found to be much more efficient in energy absorption than single-cell columns under axial compression. However, the experimental investigations and theoretical analyses of them are relatively few. In this paper, the quasi-static axial compression tests are carried out for multi-cell columns with different sections. The significant advantage of multi-cell sections over single cell in energy absorption efficiency is investigated and validated. Numerical simulations are also conducted to simulate the compression tests and the numerical results show a very good agreement with experiment. Theoretial analyses based on constitutive element method are proposed to predict the crush resistance of multi-cell columns and the theoretical predictions compare very well with the experimental and numerical results. (C) 2013 Elsevier Ltd. All rights reserved.
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