Low-speed collision optimization design of composite bumper

REN Mingwei; HONG Zhiguo; ZHOU Yujing; YIN Sha; TIAN Yuli; MA Sai; CHEN Yunbo; FAN Guanghong

doi:10.13801/j.cnki.fhclxb.20210420.001

Volume 39 Issue 2

Feb. 2022

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REN Mingwei, HONG Zhiguo, ZHOU Yujing, et al. Low-speed collision optimization design of composite bumper[J]. Acta Materiae Compositae Sinica, 2022, 39(2): 854-862. doi: 10.13801/j.cnki.fhclxb.20210420.001

Citation:

REN Mingwei, HONG Zhiguo, ZHOU Yujing, et al. Low-speed collision optimization design of composite bumper[J]. Acta Materiae Compositae Sinica, 2022, 39(2): 854-862. doi: 10.13801/j.cnki.fhclxb.20210420.001

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Low-speed collision optimization design of composite bumper

doi: 10.13801/j.cnki.fhclxb.20210420.001

REN Mingwei^1
,,
HONG Zhiguo^2
,,
ZHOU Yujing¹,
YIN Sha^2
,,
TIAN Yuli^3
,,
MA Sai^3
,,
CHEN Yunbo^{1
,
,},
FAN Guanghong^1
,

1.
State Key Laboratory of Advanced Forming Technology and Equipment, Beijing National Innovation Institute of lightweight LTD., Beijing 100083, China
2.
School of Transportation Science and Engineering, Beihang University, Beijing 100191, China
3.
New Technology Department, Beijing New Energy Automobile CO. LTD., Beijing 100176, China

Received Date: 2021-02-02
Accepted Date: 2021-04-11
Rev Recd Date: 2021-03-29

Available Online: 2021-04-20

Publish Date: 2022-02-01

Abstract

Abstract

Composites are termed as important lightweight materials because of their high specific stiffness and strength. The application of composites in automotive industry can be one effective way to reduce environmental pollution and energy shortages. A composites bumper, which is 27% lighter than the aluminum counterpart, was designed and fabricated using wet compression molding with carbon fiber. Then, 40% frontal collision following RCAR standard were performed on these bumpers. Meanwhile, the finite element models were built up in LS-DYNA and used for parameter discussion after validation. The thickness of energy absorption box can increase the crashworthiness of the bumper, while the energy absorption capability can be enhanced after introducing a bioinspired helicoidal fiber arrangement. Also, the composites bumper is demonstrated to outperform the metal one under the same weight.
- composites,
- lightweight,
- bumper,
- wet compression molding,
- low-speed collision
Long Abstrsct
Innovation Points

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References(21)

References

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