이종재료의 결합방법에 따른 모자형 단면부재의 충돌실험

Crushing Test of the Double Hat-shaped Members of Dissimilar Materials by Seining Methods

  • 이명한 (서울대학교 기계항공공학부 대학원) ;
  • 박영배 (서울대학교 기계항공공학부 대학원) ;
  • 김헌영 (강원대학교 기계공학과) ;
  • 오수익 (서울대학교 기계항공공학부)
  • Lee Myeong-Han (School of Mechanical and Aerospace Engineering, Seoul National University) ;
  • Park Young-Bae (School of Mechanical and Aerospace Engineering, Seoul National University) ;
  • Kim Heon-Young (Division of Mechanical and Mechatronics Engineering, Kangwon National University) ;
  • Oh Soo-Ik (School of Mechanical and Aerospace Engineering, Seoul National University)
  • 발행 : 2005.07.01

초록

There is a strong industrial demand for the development of light-weight vehicle to improve fuel efficiency and dynamic performance. The effective method of achieving the weight reduction is to use low-density materials such as aluminum and magnesium. In applying these materials to the vehicle, it is often required to join dissimilar materials such as aluminum and steel. However, conventional joining method, namely resistance spot welding cannot be used in joining dissimilar materials. Self·piercing rivet(SPR) and adhesive bonding is a good alternative to resistance spot welding. In this study, the impact test of double hat-shaped member made by resistance spot welding, SPR and adhesive bonding was performed. As a result, various parameters of crashworthiness were analyzed and evaluated. Also, the applicability of SPR and adhesive bonding as an alternative to resistance spot welding was suggested.

키워드

참고문헌

  1. M. D. White and N. Jones, 'Proc. Instn Mech. Engrs, Part D,' Journal of Automobile Engineering, pp.259-278, 1999 https://doi.org/10.1243/0954407991526856
  2. M. D. White and N. Jones, 'Experimental Quasi- static Axial Crushing of Top-hat and Double-hat Thin-walled Sections,' International Journal of Mechanical Sciences, Vol.41, pp.179-208, 1999 https://doi.org/10.1016/S0020-7403(98)00047-2
  3. Y. Ohkubo, T. Akamatsu and K. Shirasawa, 'Mean Crushing Strength of Closed-hat Section Members,' SAE 740040, 1974
  4. B. C. Schell, M. Y. Sheh, P. H. Tran, C. L. Pan and W. W. Yu, 'Proceedings of Automotive Body Design & Engineering,' pp.48-55, IBEC, 1993
  5. C. L Pan and W. W Yu, 'Bending Strength of Hybrid Cold-formed Steel Beams,' Thin-walled Structures, Vol.40, pp.399-414, 2002 https://doi.org/10.1016/S0263-8231(02)00004-6
  6. H. I. Lee, B. J. Kim and B. K. Han, 'Energy Absorption Characteristics and Optimal Welding Space of Square Hat Type Thin-walled Tube,' Transactions of KSME A, Vol.26, No.12, pp.2703-2714, 2002