Transactions of the Korean Society of Automotive Engineers (한국자동차공학회논문집)

The Korean Society of Automotive Engineers (한국자동차공학회)
권호 표지

Effect of Punch Shapes on Failure Instability of Expansion Tube

펀치형상이 팽창튜브의 파단불안전성에 미치는 영향

  • Choi, Won-Mok (Department of Virtual Engineering, University of Science and Technology) ;
  • Kwon, Tae-Su (Railroad Structure Research Department, Korea Railroad Research Institute) ;
  • Jung, Hyun-Sung (Railroad Structure Research Department, Korea Railroad Research Institute) ;
  • Kim, Jing-Sung (Railroad Structure Research Department, Korea Railroad Research Institute)
  • 최원목 (과학기술연합대학원대학교 가상공학과) ;
  • 권태수 (한국철도기술연구원 철도구조연구실) ;
  • 정현승 (한국철도기술연구원 철도구조연구실) ;
  • 김진성 (한국철도기술연구원 철도구조연구실)
  • Received : 2010.07.01
  • Accepted : 2010.08.23
  • Published : 2011.03.01
Download PDF
⟨ Previous Next ⟩

Abstract

The rupture of an expansion tube is mainly affected by the expansion ratio and the external shape of the punch used to expand the tube. In order to prevent the tube from rupture, the effect of the external shape of the punch should be considered in the design. The aim of this paper is to confirm the effect of key design parameters of the punch on rupture of the tube using a finite element analysis with a ductile damage model. The results of the analysis indicated that the expansion ratio of the tube was mainly affected by variation of the radius of the punch. However, the rupture was more affected by variation of the punch angle than the radius of the punch. The existence of a specific punch angle at which rupture did not occur, even if the radius of the punch was increased, was found from the results.

Keywords

References

  1. J. W. Kim, J. S. Koo and J. S. Lim, "Modeling Method for the Force and Deformation Curve of Energy Absorbing Structures to Consider Initial Collapse Behavior in Train Crash," Transactions of KSAE, Vol.18, No.3, pp.116-126, 2010.
  2. M. Shakeri, S. Salehghaffari and R. Mirzaeifar, "Expansion of Circular Tubes by Rigid Tubes as Impact Energy Absorbers: Experimental and Theoretical Investigation," International Journal of Crashworthiness, Vol.12, pp.493-501, 2007. https://doi.org/10.1080/13588260701483540
  3. V. Lucanin, J. Tanaskovic, D. Milkovic and S. Golubovic, "Experimental Research of the Tube Absorbers of Kinetic Energy During Collision," FEM Transactions, Vol.35, pp.201-204, 2007.
  4. A. Karrech and A. Seibi, "Analytical Model for the Expansion of Tubes under Tension," Journal of Materials Processing Technology, Vol.210, pp.356-362, 2010. https://doi.org/10.1016/j.jmatprotec.2009.09.024
  5. T. Daxner, F. G. Rammerstorfer and F. D. Fischer, "Instability Phonomena during the Conical Expansion of Circular Cylindrical Shells," Computer Methods in Applied Mechanics and Engineering, Vol.194, pp.2591-2603, 2005. https://doi.org/10.1016/j.cma.2004.07.047
  6. B. P. P. Almeida, M. L. Alves, P. A. R. Rosa, A. G. Brito and P. A. F. Martins, "Expansion and Reduction of Thin-walled Tubes a Die : Experimental and Theoretical Investigation," International Journal of Machine Tools & Manufacture, Vol.46, pp.1643-1652, 2006. https://doi.org/10.1016/j.ijmachtools.2005.08.018
  7. H. Hooputra, H. Gese, H. Dell and H. Werner, "A Comprehensive Failure Model for Crashworthiness Simulation of Aluminium Extrusions," International Journal of Crashworthiness, Vol.9, No.5, pp.449-464, 2004. https://doi.org/10.1533/ijcr.2004.0289
  8. ABAQUS Verson 6.6, User's Manual, Hibbitt Karlsson and Sorensen Inc, 2006.
  9. J. H. Holloman, Trans. AMIE 162, p.268, 1915.
  10. A. L. Gurson, "Continuum Theory of Ductile Rupture by Void Nucleation and Growth: Part I-Yield Criteria and Flow Rules for Porous Ductile Media," Journal of Engineering Materials and Technology, Vol.99, Issue 2, pp.2-15, 1977. https://doi.org/10.1115/1.3443401
  11. S. Ghosh, M. Li and A. Khadke, "3D Modeling of Shear-slitting Process for Aluminum Alloys," Journal of Materials Processing Tehcnology, Vol.167, pp.91-102, 2005. https://doi.org/10.1016/j.jmatprotec.2004.08.031
  12. V. Uthaisangsuk, U. Prahl, S. Münstermann and W. Bleck, "Experimental and Numerical Failure Criterion for Formability Prediction in Sheet Metal Formaing," Computational Materials Science, doi:10.1016/j.commatsci.2007.07.036.
  13. J. R. Rice and D. M. Tracey, "On the Ductile Enlargement of Voids in Triaxial Stress Fields," J. Mech. Phys. Solids, Vol.17, pp.201-217, 1969. https://doi.org/10.1016/0022-5096(69)90033-7
  14. M. G. Cockroft and D. J. Latham, "Ductility and Workability of Metals," J. Inst. Metals, Vol.96, pp.33-39, 1968.
  15. Y. Bao and T. Wierzbicki, "On Fracture Locus in the Equivalent Strain and Stress Triaxiality Space," International Journal of Mechanical Sciences, Vol.46, pp.81-98, 2004. https://doi.org/10.1016/j.ijmecsci.2004.02.006
  16. G. Mirone, "Role of Stress Triaxiality in Elastoplastic Characterization and Ductile Failure Prediction," Engineering Fracture Mechanics, Vol.74, pp.1203-1221, 2007. https://doi.org/10.1016/j.engfracmech.2006.08.002
  17. Y. Bao and T. Wierzbicki, "A Comparative Study on Various Ductile Crack Formation Criteria," Journal of Engineering Materials and Technology, Vol.126, Issue 3, pp.314-325, 2004. https://doi.org/10.1115/1.1755244
  18. J. W. Hancock and A. C. Mackenzie, "On the Mechanisms of Ductile Failure in Highstrength Steels Subjected to Multi-axial Stressstates," Journal of the Mechanics Science, Vol.31, pp.453-61, 1996.
  19. T. Wierzbicki and O. Muragishi, Calibration of Ductile Fracture from Compression and Tension Tests, Impact & Crashworthiness Laboratory, Report No.21, MIT, 1999.
  20. W. M. Choi, T. S. Kwon and H. S. Jung, "Quasi-static Experimental Study on Energy Absorbing Characteristic of Expansion Tube," FISITA2010 World Automotive Congress, F2010D041, Scientific Society for Mechanical Engineering, 2010.