Axial Impact Collapse Analysis on Hat-shaped Members by FEM

FEM에 의한 단일모자형 단면부재의 축방향 충격압궤 해석

  • Cha, Cheon-Seok (Dept.of Mechanical Design Engineering, Graduate School of Chosun University) ;
  • Gang, Jong-Yeop (Dept.of Mechanical Design Engineering, Graduate School of Chosun University) ;
  • Yang, In-Yeong (Dept.of Mechanical Engineering, Chosun University)
  • 차천석 (조선대학교 대학원 기계설계공학과) ;
  • 강종엽 (조선대학교 대학원 기계설계공학과) ;
  • 양인영 (조선대학교 기계공학부)
  • Published : 2000.12.01

Abstract

In the frontal collision the spot welded hat-shaped section side member is the fundamental structure for automobiles and has a great amount of absorbing capacity. For this reason LS-DYNA3D has been used for analyzing impact collapse characteristics on hat shaped section member with respect to the valuables; thickness, width ratio and spot weld potch on impact load(7.19m/sec, 1034J). By comparing the results from simulation and the experimental results, the utilization of simulation has been certified.

Keywords

References

  1. M. D. White, N. Jones, 'Experimental quasi-static axial crushing of top-hat and double-hat thin-walled sections,' International Journal of Mechanical Science 41, pp. 179-208, 1999 https://doi.org/10.1016/S0020-7403(98)00047-2
  2. M. D. White, N. Jones, W. Abramowicz, 'A theoretical analysis for the quasi-static axial crushing of top-hat and double-hat thin-walled sections,' International Journal of Mechanical Sciences 41, pp. 209-233, 1999 https://doi.org/10.1016/S0020-7403(98)00048-4
  3. 차천석, 김정호, 양인영, '모자형 단면 점용접부재의 축방향 압궤특성에 관한 연구(I),' 한국정밀공학회지, 제17권, 제3호, pp. 192-199, 2000. 3
  4. Koetsu YAMAZAKI, Jing HAN, 'Maximization of crushing energy absoption of tubes,' The American Institute of Aeronautics and Astronautics, pp. 2708-2717, 1998
  5. S. Santosa, T.Wierzbicki, 'Crash behavior of box columns filled with aluminum honeycomb foam,' Computers & Structures, pp. 333-367, 1998 https://doi.org/10.1016/S0045-7949(98)00067-4
  6. 차천석, 양인영, '모자형 단면 점용접부재의 축방향 압궤특성에 관한 연구(II),' 한국정밀공학회지, 제17권, 제5호, pp. 195-201, 2000. 5
  7. 김헌영, 강신유, 민동균, '사각단면 프레임의 충돌해석과 Hourglass제어,' 한국자동차공학회지, Vol. 16, No. 5, pp. 20-29, 1994. 5
  8. Livermore Softwear Technology Corporation, 'LS-DYNA3D theoretical manual,' pp. 6.1-6.10, 1993
  9. R. H. Grzebieta and N. W. Murray, 'Energy absorbtion of an initially imperfect strut subjected to an impact load,' International Journal Impact Engineering, Vol. 4, No. 4, pp. 147-159, 1986
  10. N .Jonse, 'Structural impact,' Cambridge University Press, pp. 403-405, 1989