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Energy absorption of pre-folded honeycomb under in-plane dynamic loading
Abstract Honeycomb structures have been extensively employed as energy absorption devices. This paper proposes a kind of energy absorption structure known as the pre-folded honeycomb, which is made from conventional honeycomb with a pre-folded trace. The folding mode and energy absorption performance of the pre-folded structure under in-plane impact load were investigated both numerically and experimentally. Furthermore, the response surface method was chosen to find the optimal pre-folded honeycomb structure for the purpose of maximizing the specific energy absorption. The results demonstrate that the proposed method is effective in solving crashworthiness design-optimization problems. Additionally, the numerical results show that the in-plane structural strength of pre-folded honeycomb is nearly 8 times higher than that of conventional honeycomb.
Highlights A kind of pre-folded honeycomb is proposed based on the Miura origami pattern. Energy absorption characteristics are validated by experiment and simulation. It is shown that the in-plane strength of pre-folded honeycomb can be increased significantly.
Energy absorption of pre-folded honeycomb under in-plane dynamic loading
Abstract Honeycomb structures have been extensively employed as energy absorption devices. This paper proposes a kind of energy absorption structure known as the pre-folded honeycomb, which is made from conventional honeycomb with a pre-folded trace. The folding mode and energy absorption performance of the pre-folded structure under in-plane impact load were investigated both numerically and experimentally. Furthermore, the response surface method was chosen to find the optimal pre-folded honeycomb structure for the purpose of maximizing the specific energy absorption. The results demonstrate that the proposed method is effective in solving crashworthiness design-optimization problems. Additionally, the numerical results show that the in-plane structural strength of pre-folded honeycomb is nearly 8 times higher than that of conventional honeycomb.
Highlights A kind of pre-folded honeycomb is proposed based on the Miura origami pattern. Energy absorption characteristics are validated by experiment and simulation. It is shown that the in-plane strength of pre-folded honeycomb can be increased significantly.
Energy absorption of pre-folded honeycomb under in-plane dynamic loading
Zhai, Jiayue (author) / Liu, Yufei (author) / Geng, Xinyu (author) / Zheng, Wei (author) / Zhao, Zhijun (author) / Cui, Chengbo (author) / Li, Meng (author)
Thin-Walled Structures ; 145
2019-08-11
Article (Journal)
Electronic Resource
English
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