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Impact Performance of W-beam Guardrail Supported by Different Shaped Posts

Received: 10 April 2016     Published: 11 April 2016
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Abstract

This study applied the finite element code LS-DYNA for evaluating the crashworthiness of W-beam guardrail. Four crash test simulations were conducted for evaluating the safety performance of the W-beam guardrail with four different post configuration according to the European standard EN1317. The results showed that the best performance was demonstrated by the sigma-shaped posts and the I-shaped posts absorbed the lowest amount of impact energy. The optimal result was registered by the barrier with sigma-shaped posts, which demonstrated a lower ASI value and higher energy crash absorption than the other models did.

Published in International Journal of Mechanical Engineering and Applications (Volume 4, Issue 2)
DOI 10.11648/j.ijmea.20160402.14
Page(s) 59-64
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), 2016. Published by Science Publishing Group

Keywords

Roadside Safety, Energy Absorption, Crashworthiness, LS-DYNA, EN1317

References
[1] European Committee for Standardization, European Standard EN 1317-1, EN 1317-2, Road Restraint Systems, 2010.
[2] Safe Direction. Protecting Life & Property. W-beam guardrail semi-rigid protection. Product manual. Ref: PM 003/01. http://www.safedirection.com.au.
[3] Ali Osman Atahan, Ayhan Oner Yucel, Muhanmet Musab Erdem. Crash testing and evaluation of a new generation L1 containment level guardrail. Engineering Failure Analysis 38 (2014) 25-37.
[4] Tso-Liang Teng, Cho-Chung Liang, Thanh-Tung Tran. Effect of various W-beam guardrail post spacing and rail heights on safety performance. Advances in Mechanical Engineering, Vol. 7(11) 1-16.
[5] LS-DYNA Keyword user’s manual. Livermore Software Technology Corporation, 2007.
[6] LS-DYNA Theoretical Manual. Livermore Software Technology Corporation, Livermore 2006.
[7] Finite Element Model Archive, FHWA/NHTSA National Crash Analysis Center. 2008. Http://Www.ncac.gwu.edu/vml/models.html (2008 November, accessed 1 Dec, 2013)
[8] K Habibagahi and J A Langer, ‘Horizontal Subgrade Modulus of Granular Soils’, in Laterally Loaded Deep Foundations, Langer, Mosely and Thompson, eds., ASTM Publication Code No. 04-835000-38, American Society for Testing Materials, 1984, pp. 21-34.
[9] Plaxico, G. S. Patzner and M H Ray. Finite element modelling of guardrail timber posts and the post-soil interaction. In Transportation Research Record 1647, p.p. 139-146 (1998).
[10] Plaxico, C. A., G. S. Patzner and M. H. Ray, “Effects of post and soil strength on the performance of the modified eccentric loader breakaway cable terminal (MELT)” (1999).
[11] C. A. Plaxico, R. M. Hackett and W. Uddin, Simulation of a Vehicle Impacting a Modified Thrie-Beam Guardrail, In Transportation Research Board 1599,National Academy Press, Washington, D. C., 1997.
[12] Texas Transport Institude, TTI. Test risk assessment program (TRAP) version 2.2 user’s manual. July 2002.
Cite This Article
  • APA Style

    Tso-Liang Teng, Cho-Chung Liang, Ching-Yu Hsu, Chien-Jong Shih, Thanh-Tung Tran. (2016). Impact Performance of W-beam Guardrail Supported by Different Shaped Posts. International Journal of Mechanical Engineering and Applications, 4(2), 59-64. https://doi.org/10.11648/j.ijmea.20160402.14

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    ACS Style

    Tso-Liang Teng; Cho-Chung Liang; Ching-Yu Hsu; Chien-Jong Shih; Thanh-Tung Tran. Impact Performance of W-beam Guardrail Supported by Different Shaped Posts. Int. J. Mech. Eng. Appl. 2016, 4(2), 59-64. doi: 10.11648/j.ijmea.20160402.14

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    AMA Style

    Tso-Liang Teng, Cho-Chung Liang, Ching-Yu Hsu, Chien-Jong Shih, Thanh-Tung Tran. Impact Performance of W-beam Guardrail Supported by Different Shaped Posts. Int J Mech Eng Appl. 2016;4(2):59-64. doi: 10.11648/j.ijmea.20160402.14

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  • @article{10.11648/j.ijmea.20160402.14,
      author = {Tso-Liang Teng and Cho-Chung Liang and Ching-Yu Hsu and Chien-Jong Shih and Thanh-Tung Tran},
      title = {Impact Performance of W-beam Guardrail Supported by Different Shaped Posts},
      journal = {International Journal of Mechanical Engineering and Applications},
      volume = {4},
      number = {2},
      pages = {59-64},
      doi = {10.11648/j.ijmea.20160402.14},
      url = {https://doi.org/10.11648/j.ijmea.20160402.14},
      eprint = {https://article.sciencepublishinggroup.com/pdf/10.11648.j.ijmea.20160402.14},
      abstract = {This study applied the finite element code LS-DYNA for evaluating the crashworthiness of W-beam guardrail. Four crash test simulations were conducted for evaluating the safety performance of the W-beam guardrail with four different post configuration according to the European standard EN1317. The results showed that the best performance was demonstrated by the sigma-shaped posts and the I-shaped posts absorbed the lowest amount of impact energy. The optimal result was registered by the barrier with sigma-shaped posts, which demonstrated a lower ASI value and higher energy crash absorption than the other models did.},
     year = {2016}
    }
    

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  • TY  - JOUR
    T1  - Impact Performance of W-beam Guardrail Supported by Different Shaped Posts
    AU  - Tso-Liang Teng
    AU  - Cho-Chung Liang
    AU  - Ching-Yu Hsu
    AU  - Chien-Jong Shih
    AU  - Thanh-Tung Tran
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    PY  - 2016
    N1  - https://doi.org/10.11648/j.ijmea.20160402.14
    DO  - 10.11648/j.ijmea.20160402.14
    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  - 59
    EP  - 64
    PB  - Science Publishing Group
    SN  - 2330-0248
    UR  - https://doi.org/10.11648/j.ijmea.20160402.14
    AB  - This study applied the finite element code LS-DYNA for evaluating the crashworthiness of W-beam guardrail. Four crash test simulations were conducted for evaluating the safety performance of the W-beam guardrail with four different post configuration according to the European standard EN1317. The results showed that the best performance was demonstrated by the sigma-shaped posts and the I-shaped posts absorbed the lowest amount of impact energy. The optimal result was registered by the barrier with sigma-shaped posts, which demonstrated a lower ASI value and higher energy crash absorption than the other models did.
    VL  - 4
    IS  - 2
    ER  - 

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Author Information
  • Department of Mechanical Engineering, Hsiuping University of Science and Technology, Taichung, Taiwan

  • Department of Mechanical and Automation Engineering, Da-Yeh University, Changhua, Taiwan

  • Department of Marine Mechanical Engineering, ROC Naval Academy, Taiwan

  • Department of Mechanical and Electro-Mechanical Engineering, Tam-Kang University, Taipei, Tawan

  • Department of Mechanical and Automation Engineering, Da-Yeh University, Changhua, Taiwan

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