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Theoretical and numerical investigation on the crush resistance of rhombic and kagome honeycombs
- Source :
-
Composite Structures . Feb2013, Vol. 96, p143-152. 10p. - Publication Year :
- 2013
-
Abstract
- Abstract: 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. [Copyright &y& Elsevier]
Details
- Language :
- English
- ISSN :
- 02638223
- Volume :
- 96
- Database :
- Academic Search Index
- Journal :
- Composite Structures
- Publication Type :
- Academic Journal
- Accession number :
- 83933042
- Full Text :
- https://doi.org/10.1016/j.compstruct.2012.09.028