Evaluation and Test of Slenderness Ratio Effect on Buckling Characteristics of Thin Cylindrical Structures Subjecting the Shear Loads

전단하중을 받는 얇은 원통구조물의 세장비에 따른 좌굴특성 평가 및 시험

  • Published : 2002.09.01


The purpose of this paper is to investigate the slenderness ratio effect on buckling characteristics of thin cylindrical structures subjecting the shear loads in detail. To do this, the buckling strength evaluations were carried out with using the evaluation formulae proposed by J. Okada. From the results of the buckling strength evaluations, the three types of staled cylindrical test specimen, which have L/R=3.1, 1.6, and 1.0, are determined for the numerical analyses and tests. From results, target slenderness ratio over L/R=3 results in dominant bending buckling mode, smaller slenderness ratio under L/R=1 results in dominant shear buckling mode, and near L/R=1.6 region shows the mixed buckling mode which has the bending and shear buckling mode simultaneously. Most results of buckling characteristics obtained by the numerical analyses and the evaluation formulae we in good agreement with those of tests.


  1. ASME Code Case N284-1 Metal Containment Shell Buckling Design Methods, Class MC Section III, Division I
  2. H. Akiyama, H. Phtsubo, etc., 'Outline of the Seismic Buckling Design Guideline for FBR - Tentative Draft,' SMIRT-11 Conference, E09/1, 1991, pp.239-250
  3. S. P. Timoshenko et al., Theory of Elastic Stability, McGraw-Hill, 2nd edn, 1961
  4. ANSYS User's Manual for Revision 5.1, Volume I,II,III
  5. RCC-MR, Appendix 7, Analyses taking Account of Buckling, 1985
  6. G. H. Koo, B. Yoo and J. B. Kim, 'Buckling Limit Evaluation for Reactor Vessel of KALIMER Liquid Metal Reactor Under Lateral Seismic Load,' Int. Journal of Pressure Vessels and Piping, Vol. 78, 2001, pp.321-330 https://doi.org/10.1016/S0308-0161(01)00049-7
  7. T. Murakami, et al, 'The Effects of Geometrical Imperfection on Shear Buckling Strength of Cylindrical Shells,' Proc. SMiRT-11, Vol. E, 1991
  8. K. Tsukimori, 'Analysis of the Effects of Interaction between Shear and Bending Load on the Buckling Strength of Cylindrical Shells,' Nuclear Engineering and Design, Vol. 165, 1996, pp.111-141 https://doi.org/10.1016/0029-5493(96)01201-0
  9. ASME Boiler and Pressure Vessel Code Section III, Subsection NH, 1995
  10. N. Yamaki, Elastic Stability of Circular Cylindrical Shells, North-Holland Series in Applied Math. And Mech, 1984
  11. J. Okada, K. Iwata, et.al, 'An Evaluation Method for Elastic-Plastic Buckling of Cylindrical Shells under Shear Forces,' Nuclear Engineering and Design, Vol. 157, 1995, pp. 65-79 https://doi.org/10.1016/0029-5493(95)00985-L
  12. RCC-MR Section I, Subsection B : Class 1 Components, 1985