Transactions of the Korean Society of Automotive Engineers (한국자동차공학회논문집)

The Korean Society of Automotive Engineers (한국자동차공학회)
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Strength of Pipe Type Door Impact Beam with Changed Bracket Mounting Method and TRP Application

브라켓 마운팅 방법 변경과 TRP 적용에 따른 강관형 도어 임팩트 빔 강도

  • Kang, Sungjong (Department of Mechanical & Automotive Engineering, Catholic University of Daegu)
  • 강성종 (대구가톨릭대학교 기계자동차공학부)
  • Received : 2015.08.20
  • Accepted : 2016.04.19
  • Published : 2016.07.01
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Abstract

Door impact beam plays a key role in minimizing the occupant injury within the side impacted vehicle through preventing intrusion of the impacting vehicle. Steel pipe type door impact beam has been widely adopted since it has simple structure and the overall strength is easily determined according to the pipe size. The brackets welded at pipe ends connect the door impact beam and the door panels by spot welds. In this study, first, the effect of pipe thickness, bracket thickness and door mounting stiffness was respectively analyzed. Next, application of the tailor rolled pipe was examined and several alterations of the bracket mounting method were considered. Application of tailor rolled pipes with superior bracket mounting method showed remarkable strength enhancement and weight reduction possibility in comparison with the current door impact beam.

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References

  1. S. H. Lim, K. W. Lee and D. S. Kim, "Design Concept Study of Body Structure According to Euro and North America Side Impact Tests," KSAE Fall Conference Proceedings, pp.1275-1280, 2003.
  2. D. Y. Yoo, J. W. Kim, K. S. Cho, H. K. Beom and O. S. Kwon, "A Study of Numerical Analysis for Improvement of US NCAP Side Impact Performance," KSAE Spring Conference Proceedings, pp.1088-1093, 2006.
  3. S. G. Kim, H. J. Yang, I. K. Kim and Y. S. Kim, "A Study on Vehicle Structure for New Korea NCAP Side Barrier Test," KSAE Annual Conference Proceedings, pp.891-896, 2014.
  4. G. H. Bae and H. Huh, "Comparison of the Optimum Designs of Center Pillar Assembly of an Auto-body between Conventional Steel and AHSS with a Simplified Side Impact Analysis," Int. J. Automotive Technology, Vol.13, No.2, pp.205-213, 2012. https://doi.org/10.1007/s12239-012-0017-4
  5. S. J. Kang, "A Study on Side Impact Simulation Technique Using Simple Beam Model," Transactions of KSAE, Vol.5, No.5, pp.170-177, 1997.
  6. H. Lim, S. Y. Lim and Y. B. Chun, "Study on Optimal Design of Cold Forming Door Impact Member," KSAE Annual Conference Proceedings, pp.980-990, 2014.
  7. LS-DYNA User's Manual, Nonlinear Dynamic Analysis of Structures, Version 971, LSTC, 2006.
  8. B. K. Chun and S. J. Kang, "Development of Side Door Intrusion Analysis Technique Using Simple Concept Model," KSAE Spring Conference Proceedings, pp.517-524, 1994.