Design and crashworthiness analysis of thin-walled tubes based on a shrimp chela structure

YANG Xin; FAN Xiaowen; XU Shucai; HUANG Han; HUO Peng

doi:10.11883/bzycj-2019-0280

Volume 40 Issue 4

Apr. 2020

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YANG Xin, FAN Xiaowen, XU Shucai, HUANG Han, HUO Peng. Design and crashworthiness analysis of thin-walled tubes based on a shrimp chela structure[J]. Explosion And Shock Waves, 2020, 40(4): 043301. doi: 10.11883/bzycj-2019-0280

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YANG Xin, FAN Xiaowen, XU Shucai, HUANG Han, HUO Peng. Design and crashworthiness analysis of thin-walled tubes based on a shrimp chela structure[J]. Explosion And Shock Waves, 2020, 40(4): 043301. doi: 10.11883/bzycj-2019-0280

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Design and crashworthiness analysis of thin-walled tubes based on a shrimp chela structure

doi: 10.11883/bzycj-2019-0280

YANG Xin^1
,,
FAN Xiaowen^{1, 2},
XU Shucai^{2
,
,},
HUANG Han²,
HUO Peng^{1, 2}

1.
College of Mechanical and Electrical Engineering, Agricultural University of Hebei, Baoding 071000, Hebei, China
2.
State Key Laboratory of Automotive Safety and Energy, Tsinghua University, Beijing 100084, China

Received Date: 2019-07-15
Rev Recd Date: 2019-11-19
Publish Date: 2020-04-01

Abstract

Abstract

In order to improve the crashworthiness of thin-walled tubes, the multi-cell bionic thin-walled tubes based on a shrimp chela structure were designed by the principle of structural bionics. By taking the cell number (2−6) and the impact angle (0°, 10°, 20°, 30°) as experimental factors, the finite element method was used to simulate the crashworthiness of the bionic tubes, the reliability of the results by the simulation test was verified by the drop-weight tests. The results show that the two-cell bionic tube has the best crashworthiness under axial and oblique loads. Under the same working conditions, the reduction of the number of unit cells can reduce the peak loads of the bionic tubes. Under the oblique impact load, the time for the bionic tubes to maintain the stable collapse deformation mode is shortened with the increase of the number of the cells, and the crashworthiness of the bionic tubes decreases with the increase of the number of the cells. The combination of a shrimp cheek structure and an ordinary circular tube effectively improves the crashworthiness of the designed structures. So it can provide a reference for the design of energy-absorbing components in vehicles.
- thin-walled tube,
- structural bionic,
- crashworthiness,
- drop-hammer test,
- cell

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References(19)

References

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