Foam Filling Effect on Bending Collapse Characteristics for Member Section Type

부재단면 형상에 따른 부재 굽힘붕괴 특성의 폼 충진 효과

  • Lee, Il-Seok (Graduate school of Automotive Engineering, Catholic University of Daegu) ;
  • Kang, Sung-Jong (School of Mechanical and Automotive Engineering, Catholic University of Daegu)
  • 이일석 (대구가톨릭대학교 대학원 자동차공학과) ;
  • 강성종 (대구가톨릭대학교 기계자동차공학부)
  • Published : 2007.03.01

Abstract

More diversified and strengthened safety regulations require higher safety vehicle with less weight. The structural foam can play a role for restraining section distortion of main body members undergoing bending collapse at vehicle crash. In this study, using structural foam modeling technology, validated in previous work, the bending collapse characteristics were evaluated for two types of circular and actual vehicle body frame sections. With changing the foam filling method, outer panel thickness and section shape, load carrying capability and absorbed energy were observed. The results indicate valuable design strategy for effectively elevating bending collapse performance of body members with foam filled.

Keywords

References

  1. S. J. Kang, 'Roof Crush Analysis Technique Using Simple Model with Plastic Hinge Concepts,' Transactions of KSAE, Vol.4, No.6, pp.216-222, 1996
  2. H. Y. Kim, J. K. Kim, S. J. Heo and H. Kang, 'Design of the Impact Energy Absorbing Member and Evaluation of the Crashworthiness for Aluminum Intensive Vehicle,' Transactions of KSAE, Vol.10, No.1, pp.216-233, 2002
  3. S. S. Chen and S. A. Meguid, 'Crush Behavior of Metallic Foams for Passenger Car Design,' Int. J. Automotive Technology, Vol.5, No.1, pp.47-53, 2004
  4. K. Ishida, M. Fukahori, K. Hanakawa, H. Tanaka and K. Matsuda, 'Development of a Technique to Strengthen Body Frame with Structural Foam,' SAE 2001-01-0313, 2001
  5. B. J. Kim and S. J. Heo, 'Collapse Characteristics of Aluminum Extrusions Filled with Structural Foam for Space Frame Vehicles,' Int. J. Automotive Technology, Vol.4, No.3, pp.141-147, 2003
  6. J. Wycech and M. Butler, 'Influence of Structural Foam Properties on the Performance of Automotive Body Reinforcements,' SP- 1765, SAE, pp.27-35, 2003
  7. I. Lee and S. Kang, 'Bending Collapse Characteristic of Hat Section Beam Filled with Structural Foam', Transactions of KSAE, Vol.14, No.2, pp.92-99, 2006
  8. LS-DYNA User's Manual, Nonlinear Dynamic Analysis of Structures, Version 960, LSTC, 2001
  9. H. Lanzerath and R. Schilling, 'Crash Simulation of Structural Foam,' SP-1765, SAE, pp.47-55, 2003