Journal
THIN-WALLED STRUCTURES
Volume 44, Issue 11, Pages 1185-1191Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.tws.2006.09.002
Keywords
multi-cell column; energy absorption; axial crushing; honeycomb
Categories
Ask authors/readers for more resources
The axial crushing of square multi-cell columns were studied analytically and numerically. Based on the Super Folding Element theory, it theoretical solution for the mean crushing force of multi-cell sections were derived by dividing the profile into 3 parts: corner, crisscross, and T-shape. Numerical simulations of square multi-cell sections subjected to dynamic axial crushing were conducted and an enhancement coefficient wits introduced to account for the inertia effects for aluminum alloy AA6060 T4. The analytical solutions show,in excellent agreement with the numerical results. It wits found that the crisscross part was the most efficient component for energy absorption and the energy absorption efficiency of it single-cell column can be increased by 50% when the section was divided into 3 x 3 cells. Finally, the proposed method was extended to analyze the plateau stress of square cell honeycomb subjected to out-plane axial crushing and to some extent validate the mechanical insensitivity of honeycomb to cell size. (c) 2006 Elsevier Ltd. All rights reserved.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available