Transactions of the Korean Society of Automotive Engineers (한국자동차공학회논문집)

The Korean Society of Automotive Engineers (한국자동차공학회)
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Light-weight Design and Simulation of Automotive Rear Bumper Impact Beam Using Boron Steels

보론강을 이용한 리어 범퍼 임팩트빔의 경량 설계 및 해석

  • Kim, Kee-Joo (Department of Automobile Engineering, Seojeong College) ;
  • Han, Chang-Pyung (Department of Automobile Engineering, Seojeong College) ;
  • Lim, Jong-Han (Department of Mechanical & Automotive Engineering, Kyungwon University) ;
  • Lee, Young-Suk (Department of Automobile Engineering, Daelim College) ;
  • Won, Si-Tae (Department of Product Design and Manufacturing Engineering, Seoul National University of Science & Technology) ;
  • Lee, Jae-Woong (Research and Development Team, GS-ONE Company)
  • 김기주 (서정대학 자동차과) ;
  • 한창평 (서정대학 자동차과) ;
  • 임종한 (경원대학교 기계.자동차공학과) ;
  • 이영숙 (대림대학 자동차과) ;
  • 원시태 (서울과학기술대학교 제품설계금형공학과) ;
  • 이재웅 (지에스원 연구개발팀)
  • Received : 2011.04.18
  • Accepted : 2011.08.19
  • Published : 2012.03.01
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Abstract

Increasing the fuel economy has been an inevitable issue for the development of new cars, and one of the important measures to improve the fuel economy is to decrease the vehicle weight. In order to obtain this goal, the researches about lighter, stronger and the well impact absorbing bumper impact beam have been studied without sacrificing bumper safety. In this study, the overall weight reduction possibility of rear bumper impact beam could be examined based on the variation of frontal, offset and corner impact crash capability by substituting a ultra high strength steel material (boron steel ) having tensile strength of 1.5 GPa grade instead of conventional steels. In addition, the section variations (open section, closed section, open section with 5 stays) of the bumper impact beam structure were examined carefully. It could be reached that this analysis could be well established and be contributed for design guide and the optimum design conditions of the automotive rear bumper impact beam development.

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References

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