Structural Engineering and Mechanics

Techno-Press (테크노프레스)
권호 표지
DOI QR코드

DOI QR Code

Experimental investigation on the buckling of thin cylindrical shells with two-stepwise variable thickness under external pressure

  • Aghajari, Sirous (Faculty of Civil Engineering, Sahand University of Technology) ;
  • Showkati, Hossein (Department of Civil Engineering, Urmia University) ;
  • Abedi, Karim (Faculty of Civil Engineering, Sahand University of Technology)
  • Received : 2010.01.13
  • Accepted : 2011.06.24
  • Published : 2011.09.25
⟨ Previous Next ⟩

Abstract

The buckling capacity of the cylindrical shells depends on two geometric ratios of L/R and R/t. However the effect of thickness variation on the behavior of the shells is more complicated and the buckling strength of them is sensitive to the magnitude and shape of geometric imperfections. In this paper the effects of thickness variation and geometric imperfections on the buckling and postbuckling behavior of cylindrical shells are experimentally investigated. The obtained results are presented under the effect of uniform lateral pressure. It is found in this investigation that the buckling mode can be generated in the whole length of the shell, if the thickness variation is low.

Keywords

References

  1. Aghajari, S. (2005), "Investigation of the buckling and postbuckling behavior of cylindrical shells with varying thickness under uniform external pressure", M. Eng Thesis, Faculty of Civil Engineering, Sahand University of Technology, Tabriz, Iran.
  2. Ansourian, P. (1992), "On the buckling analysis and design of silos and tanks", J. Constr. Steel Res., 23, 273-294. https://doi.org/10.1016/0143-974X(92)90047-I
  3. Batdorf, B. (1947), "A simplified method of elastic stability analysis for thin cylindrical shell, modified equilibrium equation", NACA TN 1342.
  4. Donnell, L.H. (1933), Stability of Thin-walled Tubes under Torsion, NACA Report, No. 479.
  5. Gadalla, M. and El Kadi, H. (2009), "Evaluation of thermal stability of quasi-isotropic composite/polymeric cylindrical structures under extreme climatic conditions", J. Struct. Eng., 32(3), 429-445.
  6. Gusic, G., Combescure, A. and Jullien, J.F. (2000), "The influence of circumferential thickness variations on the buckling of cylindrical shells under external pressure", Comput. Struct., 74, 461-477. https://doi.org/10.1016/S0045-7949(99)00053-X
  7. Hansen, J.S. (1975), "Influence of general imperfections in axially loaded cylindrical shells", Solid Struct., 11, 1233-1243.
  8. Hui, D. (1988), "Postbuckling behavior of infinite beams on elastic foundation using Koiter's improved theory", Int. J. Nonlin. Mech., 23(2), 113-123. https://doi.org/10.1016/0020-7462(88)90018-2
  9. Holst, F.G., Rotter, J.M. and Calladine, C.R. (1999), "Imperfection in cylindrical shells resulting from fabrication misfits", J. Eng. Mech., 125(4), 410-418. https://doi.org/10.1061/(ASCE)0733-9399(1999)125:4(410)
  10. Koiter, W.T. (1967), "On the stability of elastic equilibrium", Doctoral Thesis, Delft, Amesterdam, 1945 (English Translation, NASA TT-10, 833).
  11. Koiter, W.T. (1976), "General theory of mode interaction in stiffened plate and shell structures", Delft University of Technology, Report WTHD-91.
  12. Koiter, W.T., Elishakov, I., Li, Y.W. and Starness, J.H. (1994), "Buckling of axially compressed cylindrical shell of variable thickness", Int. J. Solids Struct., 31(30), 797-805. https://doi.org/10.1016/0020-7683(94)90078-7
  13. Lee, L.H. (1962), "Inelastic buckling of initially imperfect cylindrical shells subject to axial compression", J. Aerosp. Sci., 87-95.
  14. Li, Y.W., Elishakov, I., Starnes, J. and Bushnell, D. (1997), "Effect of thickness variation and initial imperfection on buckling of composite cylindrical shells: Asymptotic Analysis and Numerical Result by Bosor4 and Panda2", Int. J. Solid Struct., 34(28), 3755-3767. https://doi.org/10.1016/S0020-7683(96)00230-2
  15. Malik, Z., Morton, J. and Ruiz, C. (1980), "Buckling under normal pressure of cylindrical shells with various edge conditions", J. Press. Ves. Tech., 102, 107-111. https://doi.org/10.1115/1.3263288
  16. Popov, A.A. (2003), "Parametric resonance in cylindrical shells: a case study in nonlinear vibration of structural shell", Eng. Struct., 25, 789-799. https://doi.org/10.1016/S0141-0296(03)00006-3
  17. Portela, G. and Godoy, L.A. (2007), "Wind pressure and buckling of grouped steel tanks", Wind Struct., 10(1), 23-44. https://doi.org/10.12989/was.2007.10.1.023
  18. Shen, H.S. and Chen, T.Y. (1991), "Buckling and post buckling behavior of cylindrical shells under combined external pressure and axial compression", Thin Wall Struct., 12, 321-334. https://doi.org/10.1016/0263-8231(91)90032-E
  19. Showkati, H. (1995), "The buckling strength of cylindrical shells under external pressure", Ph.D. Thesis, The University of Sydney.
  20. Winterstetter, T.A. and Schmidt, H. (2002), "Stability of circular cylindrical steel shells under combined loading", Thin Wall. Struct., 40, 893-909. https://doi.org/10.1016/S0263-8231(02)00006-X
  21. Yamaki, N. (1984), Elastic Stability of Circular Cylindrical Shells, Amsterdam, North-Holand.

Cited by

  1. Buckling of axial compressed cylindrical shells with stepwise variable thickness vol.54, pp.1, 2015, https://doi.org/10.12989/sem.2015.54.1.087
  2. Aspect ratio factor for finite element method analysis of axially symmetric cylindrical shell walls vol.6, pp.4, 2014, https://doi.org/10.3846/2029882X.2014.996255
  3. Buckling of Cylindrical Steel Tanks With Oblique Body Imperfection Under Uniform External Pressure vol.139, pp.6, 2017, https://doi.org/10.1115/1.4037808
  4. Study on bi-stable behaviors of un-stressed thin cylindrical shells based on the extremal principle vol.68, pp.3, 2011, https://doi.org/10.12989/sem.2018.68.3.377
  5. Numerical studies of the failure modes of ring-stiffened cylinders under hydrostatic pressure vol.70, pp.4, 2011, https://doi.org/10.12989/sem.2019.70.4.431