期刊
COMPOSITE STRUCTURES
卷 96, 期 -, 页码 143-152出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.compstruct.2012.09.028
关键词
Honeycomb; Multi-cell; Columns; Out-of-plane properties; Energy absorption
资金
- National Natural Science Foundation of China [11002060]
- Fundamental Research Funds for the Central Universities, HUST [2010QN002]
The out-of-plane crushing properties of rhombic and kagome honeycombs are studied in this paper by dividing the whole structure into basic angle elements: corner elements and X-shaped elements. Two theoretical models are presented to analyze the energy absorption mechanisms for inextensional mode of corner elements and one of collapse modes of X-shaped elements respectively. Expressions are derived to predict the mean crushing force of the angle elements. Numerical simulations are also carried out for angle elements under out-of-plane crushing by using nonlinear finite element code LS-DYNA. Crush resistance of angle elements with different geometric configurations including angle, width and thickness is analyzed. A comparison between theoretical predictions and numerical results shows that the theoretical models can effectively predict the mean crushing force of angle elements with a very good accuracy. (c) 2012 Elsevier Ltd. All rights reserved.
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