Journal of the Korean Society of Safety (한국안전학회지)

The Korean Society of Safety (한국안전학회)
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Influence of Stacking Condition on Collision Safety of CFRP Side Member

적층구성이 CFRP 사이드 부재의 충돌안전성에 미치는 영향

  • Hwang, Woo Chae (Department of Mechanical Design Engineering, Chosun University) ;
  • Yang, In Young (Department of Mechanical System Engineering, Chosun University)
  • 황우채 (조선대학교 기계설계공학과) ;
  • 양인영 (조선대학교 기계시스템공학과)
  • Received : 2014.02.07
  • Accepted : 2014.05.16
  • Published : 2014.06.30
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Abstract

The global demand for reduction in the weight of automobiles has led many countries to focus on the development of hybrid, eco-friendly, and electric cars. Reduction in the weight of materials can both increase fuel efficiency and maximize automobile performance. Therefore, the design of automobile should be inclined towards the safety aspects. but at the same time, it also consider reducing the structural weight of an automobile. In this study, CFRP side members with circular and double hat shaped section was manufactured. The impact collapse tests performed with change of the stacking condition, such as variation of interface number and outerlayer angle. The impact collapse load and absorbed energy were quantitatively analyzed according to the changes in section shapes and stacking condition. This analysis was performed to obtain design data that can be applied in the development of optimum lightweight members for automobiles.

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References

  1. D. G. Lee, and P. K. Oh, "Design and Manufacturing of Composite Automotive Parts." Journal of KSAE, 16:2 45-54, 1994.
  2. F. Adams. Donald, "Test Methods For Composite Materials: Seminar Notes" Technomic Publishing Company, 1990.
  3. Y. N. Kim, "Axial Collapse Characteristics of CFRP Composite Thin-wall Structures for Light Weight of Vehicles." Doctorate Thesis, Chosun University, 2002.
  4. A. G. Mamilis, D. E. Manolakos, G. A. Demosthenous and W. Johnson, "Axial Plastic Collapse of Thin Bi-Material Tubes as Energy Dissipating Systems." International Journal of Impact Engineering, Vol.11, pp.185-196, 1991. https://doi.org/10.1016/0734-743X(91)90005-Z
  5. V. M. Karbhari, "Energy Absorption Characteristics of Hybrid Braided Composite Tubes." J. Composite Materials, Vol.31, pp.1164-1186, 1997. https://doi.org/10.1177/002199839703101201
  6. J, R. Vinson, "The Behavior of Shells Composed of Isotropic and Composite Materials", Kluwer Academic Publishers, ISBN 0-7923-2113-8, 1993.
  7. S. K. Kim, J. K. Sim and I. Y. Yang, "An Energy Absorption Characteristics of Thin-walled Structure Members by Crushing Load" Transactions of the KSAE, Vol. 3, pp.74-81, 1995.
  8. K. S. Lee, "Evaluation of the Crashworthiness for Impact Energy Absorbing Lightweight Vehicle Members." Doctorate Thesis, Chosun University, 2008.
  9. M. D. White and N. Jones, "Experimental Quasi-static Axial Crushing of Top-hat and Double-hat Thin-walled Sections." Int. J. Mech. Sci, Vol. 41, pp. 179-208, 1999. https://doi.org/10.1016/S0020-7403(98)00047-2
  10. C. S. Cha, J. O. Chung, J. W. Park, Y. N. Kim and I. Y. Yang, "Collapse Analysis of Spot Welded thin Section Members in a Vehicle Body Structure at Various Impact Velocities" KSME International Journal, Vol.17, No. 4, pp. 501-510, 2003.