Structural Engineering and Mechanics

  • 제9권4호
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  • Pages.339-347
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  • 2000
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  • 1225-4568(pISSN)
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  • 1598-6217(eISSN)
테크노프레스 (Techno-Press)
권호 표지
DOI QR코드

DOI QR Code

An experimental study on creep deformation of thin-walled tubes under pure bending

  • Hsu, Chien-Min (Department of Arts-Craft, Tung Fung Junior College of Technology, Kao Hsiung County) ;
  • Fan, Chun-Huei (Department of Engineering Science, National Cheng Kung University)
  • 발행 : 2000.04.25
⟨ 이전 논문 다음 논문 ⟩

초록

The creep deformation of pure bending (hold constant moment for a period of time) tests were conducted in this paper. Thin-walled tubes of 304 stainless steel were used in this investigation. The curvature-ovalization measurement apparatus, designed by Pan et al. (1998), was used for conducting the present experiments. It has been found that as soon as the creep deformation is started, the magnitudes of the tube curvature and ovalization of tube cross-section quickly increase. The magnitudes of the creep curvature and ovalization of tube cross-section increase fast with a higher hold moment than that with a lower one. Owing to the continuously increasing curvature during the creep deformation, the tube specimen buckles eventually.

키워드

참고문헌

  1. Corona, E. and Kyriakides, S. (1988), "On the collapse of inelastic tubes under combined bending and pressure",Int. J. Solids Struct., 24(5), 505-553. https://doi.org/10.1016/0020-7683(88)90005-4
  2. Corona, E. and Kyriakides, S. (1991), "An experimental investigation of the degradation and buckling of circulartubes under cyclic bending and external pressure", Thin-Walled Struct., 12, 229-263. https://doi.org/10.1016/0263-8231(91)90048-N
  3. Fabian, O. (1977), "Collapse of cylindrical, elastic tube under combined bending, pressure and axial loads", Int.J. Solids Struct., 13, 1257-1273. https://doi.org/10.1016/0020-7683(77)90099-3
  4. Gellin, S. (1980), "The plastic buckling of long cylindrical shell under pure bending", Int. J. Solids Struct., 16,397-407. https://doi.org/10.1016/0020-7683(80)90038-4
  5. Kyriakides, S. and Shaw, P.K. (1982), "Response and stability of elastoplastic circular pipes under combinedbending and external pressure", Int. J. Solids Struct., 18(11), 957-973. https://doi.org/10.1016/0020-7683(82)90086-5
  6. Kyriakides, S. and Shaw, P.K. (1983), "Buckling of plastic tubes under cyclic bending", Proc. 4th Eng. Mech.Div., ASCE Spec. Conf., Purdue University, I, 604-667.
  7. Kyriakides, S. and Shaw, P.K. (1987), "Inelastic buckling of tubes under cyclic loads", ASME J. Press.VesselTechnol., 109, 169-178. https://doi.org/10.1115/1.3264891
  8. Kyriakides, S. and Ju, G.T. (1992), "Bifurcation and localization instabilities in cylindrical shells under bending,I: Experiments", Int. J. Solids Struct., 29(9), 1117-1142. https://doi.org/10.1016/0020-7683(92)90139-K
  9. Pan, W.F. and Chern, C.H. (1997), "Endochronic description for viscoplastic behavior of materials undermultiaxial loading", Int. J. Solids Struct., 34(17), 2131-2160. https://doi.org/10.1016/S0020-7683(96)00118-7
  10. Pan, W.F. and Her, Y.S. (1998), "Viscoplastic collapse of thin-walled tubes under cyclic bending", ASME J.Engng. Mat. Technol., 120, 287-290. https://doi.org/10.1115/1.2807015
  11. Pan, W.F., Wang, T.R. and Hsu, C.M. (1998), "A curvature-ovalization measurement apparatus for circular tubesunder cyclic bending", Experimental Mechanics, 38(2), 99-102. https://doi.org/10.1007/BF02321651
  12. Pan, W.F. and Hsu, C.M. (1999), "Viscoplastic analysis of thin-walled tubes under cyclic bending", Int. J. Struct.Engng. Mech., 7(5), 457-471. https://doi.org/10.12989/sem.1999.7.5.457
  13. Reddy, B.D. (1979), "An experimental study of the plastic buckling of circular cylinders in pure bending", Int. J.Solids Struct., 15, 669-683. https://doi.org/10.1016/0020-7683(79)90066-0
  14. Shaw, P.K. and Kyriakides, S. (1985), "Inelastic analysis of thin-walled tubes under cyclic bending", Int. J.Solids Struct., 21(11), 1073-1100. https://doi.org/10.1016/0020-7683(85)90044-7