Transactions of the Korean Society of Automotive Engineers (한국자동차공학회논문집)

The Korean Society of Automotive Engineers (한국자동차공학회)
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Optimization of Frontal Crashworthiness for the Weight Reduction Design of an Auto-body Member with the Advanced High Strength Steels

초고강도강 적용 차체 부재의 경량 설계를 위한 정면 충돌성능 최적화

  • Kim, Kee-Poong (Automotive Components Service Center, Korea Institute of Industrial Technology) ;
  • Kim, Se-Ho (School of Automotive, Industrial and Mechanical Engineering, Daegu University)
  • 김기풍 (한국생산기술연구원 동력부품지원센터) ;
  • 김세호 (대구대학교 자동차.산업.기계공학부)
  • Published : 2009.03.01
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Abstract

In this paper, optimization for frontal crashworthiness is carried out for the weight reduction design of an auto-body member with the advanced high strength steels(AHSS) such as 780TRIP and 780DP. The frontal crashworthiness is evaluated in order to optimize thicknesses for the front rail member of the ULSAB-AVC, Thicknesses of the front rail member with AHSS are optimized by comparison of crushing distance, absorbed energy and the deceleration for the auto-body with the response surface methodology. The results demonstrate that the crashworhiness of the front rail member with the optimum thicknesses of the AHSS is similar to analysis results obtained from the ULSAB-AVC project. The results also show that the weight reduction design is performed by substituting the AHSS for conventional structural steels such as 440E in the auto-body members.

Keywords

References

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