International Journal of Mechanical Engineering and Applications

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Study on Optimization of Automobile Crash Box Considering the Influence of Strain Rate

Received: 20 April 2020    Accepted:     Published: 08 June 2020
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Abstract

The strain rate is one of the main factors that determines the yield strength of the material, which has a great influence on the accuracy of the numerical simulation of the automobile crash box. The numerical simulation of the crash box considering the strain rate of the material is carried out, and found that the impact force on the longitudinal beam of the car body is large and the energy absorption ability is small during the collision process. Through two sets of optimization studies, the results show that increasing the double-sided convex groove at the proper position of the front crash box can effectively reduce the impact force transmitted to the car body at the initial stage of the collision, and at the same time reduce the energy absorption ability of the crash box; Adding double-sided grooves at the front crash box can make the crash box collapse smoothly, cut down the collision force transmitted to the car body, and increase the energy-absorbing ability. At the same time, the results of the two optimization designs are verified by the methods: the sense of crushing deformation and the average square of all nodes velocity.

DOI 10.11648/j.ijmea.20200802.13
Published in International Journal of Mechanical Engineering and Applications (Volume 8, Issue 2, April 2020)
Page(s) 75-80
Creative Commons

This is an Open Access article, distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution and reproduction in any medium or format, provided the original work is properly cited.

Copyright

Copyright © The Author(s), 2024. Published by Science Publishing Group

Keywords

Crash Box, Strain Rate, Numerical Simulation

References
[1] National Bureau of Statistics, Statistical Bulletin of National Economic and Social Development of the People's Republic of China 2019. .
[2] Zhao Chen, Fang Teng Yuan, Zhao Jun Wei, et al. “Study on simulation analysis of vehicle rear end accidents based on accident reverse reproduction,” Journal of Safety Science and Technology, Beijing, vol. 16 (2020), pp 157-163.
[3] Liu Zhong Hua, LI Xue Song, QU Tian Lei. “Multi-Objective Optimization Design of Inducing Grooves for Crash-Box,” Journal of Chongqing University of Technology (Natural Science), Chongqing, vol. 10 (2017), pp 35-42, 55.
[4] Zhang Shi-bo, Liu Lan, “Projection Kinematics of Pedestrian Impacted by Minivans,” China Journal of Highway and Transport, Xi’an, vol. 31 (2018), pp 262-269.
[5] Chen Kai Xian, Zeng Jun Wei, Qian Yong Sheng, et al. “Study on the Characteristics of Regional Traffic Flow Rate Control in Expressway Traffic Accidents,” Highway Engineering, Changsha, vol. 43 (2018), pp 91-95.
[6] Xie Yun, Tang Zhe Hao, Wang Hang Yan, et al. “Research on lightweight bumper based on crashworthiness,” Journal of Plasticity Engineering, Beijing, vol. 27 (2020), pp 81-87.
[7] Liu Wen Qi, Lian Jun He, Sebastian Münstermann, et al. “Prediction of crack formation in the progressive folding of square tubes during dynamic axial crushing,” International Journal of Mechanical Sciences, London, vol. 176 (2020), pp 176.
[8] N. Nasir Hussain, Srinivasa Prakash Regalla, Yendluri V. Daseswara Rao. “Economical method for manufacturing of advanced light weight material crash box for automobiles,” Materials Today, Proceedings, 2020.
[9] Zhang Yi. “Structural optimization design of automobile crash box under low-speed collision,” Dalian, Dalian University of Technology.
[10] Wang C Y, Li Y, Zhao W Z, et al. “Structure design and multi-objective optimization of a novel crash box based on biomimetic structure,” International Journal of Mechanical Sciences, London, vol. 138-139 (2018), pp 489-501.
[11] MARZBANRAD J,KESHAVARZI A. “A Numerical and experimental study on the crash behavior of the extruded aluminum crash box with elastic support,” Latin American Journal of Solids and Structures, Brasilia, vol. 11 (2014), pp 1329-1348.
[12] BELINGARDI G,BEYENE A T,KORICHO E G,et al. “Alternative lightweight materials and component manufacturing technologies for vehicle frontal bumper beam,” Composite Structures, London, vol. 120 (2015), pp 120
[13] Liu Zhen Yao, Guo Bin, Wang Lin Pin. “Numerical simulation of vehicle crashes based on LS-DYNA”. Chinese Quarterly of Mechanics, Shanghai, vol. 41 (2020), pp 179-186.
Author Information
  • Department of Vehicle Engineering, National Taipei University of Technology, Taipei, China

  • Department of Vehicle Engineering, National Taipei University of Technology, Taipei, China; School of Physics and Electromechanical Engineering, Longyan University, Longyan, China

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  • APA Style

    Chih-Keng Chen, Yu-Jie Ma. (2020). Study on Optimization of Automobile Crash Box Considering the Influence of Strain Rate. International Journal of Mechanical Engineering and Applications, 8(2), 75-80. https://doi.org/10.11648/j.ijmea.20200802.13

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    ACS Style

    Chih-Keng Chen; Yu-Jie Ma. Study on Optimization of Automobile Crash Box Considering the Influence of Strain Rate. Int. J. Mech. Eng. Appl. 2020, 8(2), 75-80. doi: 10.11648/j.ijmea.20200802.13

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    AMA Style

    Chih-Keng Chen, Yu-Jie Ma. Study on Optimization of Automobile Crash Box Considering the Influence of Strain Rate. Int J Mech Eng Appl. 2020;8(2):75-80. doi: 10.11648/j.ijmea.20200802.13

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  • @article{10.11648/j.ijmea.20200802.13,
      author = {Chih-Keng Chen and Yu-Jie Ma},
      title = {Study on Optimization of Automobile Crash Box Considering the Influence of Strain Rate},
      journal = {International Journal of Mechanical Engineering and Applications},
      volume = {8},
      number = {2},
      pages = {75-80},
      doi = {10.11648/j.ijmea.20200802.13},
      url = {https://doi.org/10.11648/j.ijmea.20200802.13},
      eprint = {https://download.sciencepg.com/pdf/10.11648.j.ijmea.20200802.13},
      abstract = {The strain rate is one of the main factors that determines the yield strength of the material, which has a great influence on the accuracy of the numerical simulation of the automobile crash box. The numerical simulation of the crash box considering the strain rate of the material is carried out, and found that the impact force on the longitudinal beam of the car body is large and the energy absorption ability is small during the collision process. Through two sets of optimization studies, the results show that increasing the double-sided convex groove at the proper position of the front crash box can effectively reduce the impact force transmitted to the car body at the initial stage of the collision, and at the same time reduce the energy absorption ability of the crash box; Adding double-sided grooves at the front crash box can make the crash box collapse smoothly, cut down the collision force transmitted to the car body, and increase the energy-absorbing ability. At the same time, the results of the two optimization designs are verified by the methods: the sense of crushing deformation and the average square of all nodes velocity.},
     year = {2020}
    }
    

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    T1  - Study on Optimization of Automobile Crash Box Considering the Influence of Strain Rate
    AU  - Chih-Keng Chen
    AU  - Yu-Jie Ma
    Y1  - 2020/06/08
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    N1  - https://doi.org/10.11648/j.ijmea.20200802.13
    DO  - 10.11648/j.ijmea.20200802.13
    T2  - International Journal of Mechanical Engineering and Applications
    JF  - International Journal of Mechanical Engineering and Applications
    JO  - International Journal of Mechanical Engineering and Applications
    SP  - 75
    EP  - 80
    PB  - Science Publishing Group
    SN  - 2330-0248
    UR  - https://doi.org/10.11648/j.ijmea.20200802.13
    AB  - The strain rate is one of the main factors that determines the yield strength of the material, which has a great influence on the accuracy of the numerical simulation of the automobile crash box. The numerical simulation of the crash box considering the strain rate of the material is carried out, and found that the impact force on the longitudinal beam of the car body is large and the energy absorption ability is small during the collision process. Through two sets of optimization studies, the results show that increasing the double-sided convex groove at the proper position of the front crash box can effectively reduce the impact force transmitted to the car body at the initial stage of the collision, and at the same time reduce the energy absorption ability of the crash box; Adding double-sided grooves at the front crash box can make the crash box collapse smoothly, cut down the collision force transmitted to the car body, and increase the energy-absorbing ability. At the same time, the results of the two optimization designs are verified by the methods: the sense of crushing deformation and the average square of all nodes velocity.
    VL  - 8
    IS  - 2
    ER  - 

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