Proceedings of the 6th International Conference on Advanced High Strength Steel and Press Hardening (ICHSU 2022)

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Study on the Impact Safety Improvement of Microalloyed Element on Automobile Hot Stamped Bumper

Authors
Y. Feng1, 2, *, G. J. Huang1, X. Gao2, T. Q. Fan2, S. Zhou2, H. Z. Lu3, J. F. Wang4
1Chongqing University, Chongqing, 400044, China
2China Automotive Engineering Research Institute Co., Ltd., Chongqing, 401122, China
3CITIC-CBMM Microalloying Technical Center, CITIC Metal Co., Ltd., Beijing, 100004, China
4General Motors China Science Lab, Shanghai, 201206, China
*Corresponding author. Email: fengyi@caeri.com.cn
Corresponding Author
Y. Feng
Available Online 2 March 2023.
DOI
10.2991/978-94-6463-114-2_9How to use a DOI?
Keywords
Hot stamped steel; Microalloying; Bumper; Safety performance; Fracture performance
Abstract

Bumper is one of the most important collision safety parts on the vehicle. Based on the simulation and test methods, this paper verifies the advantages of microalloying in improving the resistance to impact cracking and crack propagation of hot stamped automobile bumpers. Firstly, the two hot stamped steel plates with and without microalloyed elements are treated with the same quenching process, and then the fracture card models of the two materials are established through simulation and test. Based on the fracture card model, the drop weight impact performance of two kinds of bumper materials is simulated and compared. The results show that the sample containing microalloyed elements has better impact, intrusion resistance and energy absorption performance. The hot forming trial production of two kinds of bumper materials is carried out, and the drop weight test of the actual sample is compared. The test results are consistent with the simulation results. The results show that the crack propagation effect of the sample containing microalloyed elements is weaker than that of the sample without microalloyed elements in the same observation period.

Copyright
© 2023 The Author(s)
Open Access
Open Access This chapter is licensed under the terms of the Creative Commons Attribution-NonCommercial 4.0 International License (http://creativecommons.org/licenses/by-nc/4.0/), which permits any noncommercial use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license and indicate if changes were made.

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Volume Title
Proceedings of the 6th International Conference on Advanced High Strength Steel and Press Hardening (ICHSU 2022)
Series
Atlantis Highlights in Material Sciences and Technology
Publication Date
2 March 2023
ISBN
978-94-6463-114-2
ISSN
2590-3217
DOI
10.2991/978-94-6463-114-2_9How to use a DOI?
Copyright
© 2023 The Author(s)
Open Access
Open Access This chapter is licensed under the terms of the Creative Commons Attribution-NonCommercial 4.0 International License (http://creativecommons.org/licenses/by-nc/4.0/), which permits any noncommercial use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license and indicate if changes were made.

Cite this article

risenwbib
TY  - CONF
AU  - Y. Feng
AU  - G. J. Huang
AU  - X. Gao
AU  - T. Q. Fan
AU  - S. Zhou
AU  - H. Z. Lu
AU  - J. F. Wang
PY  - 2023
DA  - 2023/03/02
TI  - Study on the Impact Safety Improvement of Microalloyed Element on Automobile Hot Stamped Bumper
BT  - Proceedings of the 6th International Conference on Advanced High Strength Steel and Press Hardening (ICHSU 2022)
PB  - Atlantis Press
SP  - 59
EP  - 70
SN  - 2590-3217
UR  - https://doi.org/10.2991/978-94-6463-114-2_9
DO  - 10.2991/978-94-6463-114-2_9
ID  - Feng2023
ER  -