Crashworthiness of Polygonal Rotary Splicing Origami Tubes Under Oblique Low-Speed Impact Loads

TENG Chenhao; LIU Kunpeng; SONG Zhibo; CHEN Jiayu; ZHOU Caihua; TU Xinhao; ZHU Dongmei

doi:10.21656/1000-0887.450336

Volume 46 Issue 5

May 2025

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Article Navigation > Applied Mathematics and Mechanics > 2025 > 46(5): 633-649

TENG Chenhao, LIU Kunpeng, SONG Zhibo, CHEN Jiayu, ZHOU Caihua, TU Xinhao, ZHU Dongmei. Crashworthiness of Polygonal Rotary Splicing Origami Tubes Under Oblique Low-Speed Impact Loads[J]. Applied Mathematics and Mechanics, 2025, 46(5): 633-649. doi: 10.21656/1000-0887.450336

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Crashworthiness of Polygonal Rotary Splicing Origami Tubes Under Oblique Low-Speed Impact Loads

doi: 10.21656/1000-0887.450336

1.
School of Mechanics and Aerospace Engineering, Dalian University of Technology, Dalian, Liaoning 416000, P.R.China
2.
BYD Company Limited, Shenzhen, Guangdong 518000, P.R.China
3.
Beijing Xinghang Electro-Mechanical Fquipment Co., Ltd., Beijing 100074, P.R.China

Received Date: 2024-12-19
Rev Recd Date: 2025-02-20
Publish Date: 2025-05-01

Abstract

Abstract

To improve the crashworthiness of automotive collision energy absorption boxes under oblique impact loads, a new-type origami tube with a polygonal rotary splicing origami pattern was designed based on conventional square tubes. The drop hammer impact experiment and numerical simulation analysis were conducted to prove the excellent crashworthiness of the new-type origami tube compared with the conventional square tube under impact load, with a high-crashworthiness diamond pattern finally produced. Additionally, the effects of geometric parameters on the crashworthiness of the new-type origami tubes were studied at different impact angles. The numerical results show that, the changes of the crease height ratios, length ratios and width-to-thickness ratios of the origami tube significantly affect the crashworthiness, and lead to different deformation modes. Under different impact angles, average force F_ave and initial peak force F_max of the new-type origami tube gradually decrease with the increase of impact angle θ, but the decline trend of F_max is more significant than that of F_ave, and the origami tube still shows a relatively high crush load efficiency under different impact angles, to further verify that the polygonal rotary splicing origami tube has excellent oblique impact energy absorption performance.
- oblique impact,
- thin-walled structure,
- origami design,
- crashworthiness

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References(19)

References

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