Structural Engineering and Mechanics

Techno-Press (테크노프레스)
권호 표지
DOI QR코드

DOI QR Code

Analytical modeling of thin-walled box T-joints

  • Marur, Prabhakar R. (India Science Lab., General Motors R&D)
  • Received : 2008.07.28
  • Accepted : 2009.04.30
  • Published : 2009.06.20
⟨ Previous Next ⟩

Abstract

A general analytical method for computing the joint stiffness from the sectional properties of the members that form the joint is derived using Vlasov's thin-walled beam theory. The analytical model of box T-joint under out-of-plane loading is investigated and validated using shell finite element results and experimental data. The analytical model of the T-joint is implemented in a beam finite element model using a revolute joint element. The out-of-plane displacement computed using the beam-joint model is compared with the corresponding shell element model. The results show close correlation between the beam revolute joint model and shell element model.

Keywords

References

  1. Borowski, V.J., Steury R.L. and Lubkin, J.L. (1973), 'Finite element dynamic analysis of an automotive frame', SAE Paper 730506
  2. Boswell, L.F. and Zhang, S.H. (1985), 'An experimental investigation of the behavior of thin-walled box beams', Thin Wall. Struct., 3, 35-65 https://doi.org/10.1016/0263-8231(85)90018-7
  3. Bylund, N. (2003), 'Fast and economical stiffness evaluation of mechanical joints', SAE Paper 2003-01-2751
  4. Chang, D.C. (1974), 'Effects of flexible connections on body structural response', SAE Trans., 83, 233-244
  5. Choi, J.K., Choi, S.H., Lee, Y.R. and Lee, J.H. (1996), 'A study of the beam mdeling of box channel structures: for the T-type joint structures', SAE Paper 960554
  6. El-Sayed, M.E.M. (1989), 'Calculation of joint spring rates using finite element formulation', Comput. Struct., 33, 977-981 https://doi.org/10.1016/0045-7949(89)90432-X
  7. Fredricson, H.A. (2003), 'Design process for property based optimization of vehicle body structures', SAE Paper 2003-01-2755, 2003
  8. Kim, Y.Y., Kang, J.H., Yim, H.J. and Kim, J.H. (1995), 'Reconsideration of the joint modeling technique: In a box-beam T-joint', SAE Paper 951108
  9. Lubkin, J.L. (1974), 'The flexibility of a tubular welded joint in a vehicle frame', SAE Paper 740340
  10. Paavola, J. (1992), 'A finite element technique for thin-walled girders', Comput. Struct., 44, 159-175 https://doi.org/10.1016/0045-7949(92)90235-R
  11. Prokic, A. (1993), 'Thin-walled beams with open and closed cross-sections', Comput. Struct., 47, 1065-1070 https://doi.org/10.1016/0045-7949(93)90310-A
  12. Sakurai, T., and Kamada, Y. (1988), 'Structural joint stiffness of automotive body', SAE Paper 880550
  13. Vlasov, V.Z. (1961), Thin-walled Elastic Beams, The Israel Program for Scientific Translations: Jerusalem
  14. Zhang, S.H. and Lyons, L.P.R. (1984), 'A thin-walled box beam finite element for curved bridge analysis', Comput. Struct., 18, 1035-1046 https://doi.org/10.1016/0045-7949(84)90148-2