Strength of Materials

, Volume 48, Issue 2, pp 308–314 | Cite as

Nonlinear Bending Stability of a Long Flexible Cylindrical Shell with Geometrical Imperfections

  • V. A. Bazhenov
  • O. O. Luk’yanchenko
  • O. V. Kostina
  • O. V. Gerashchenko
Article
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The authors put forward a numerical approach to determination of nonlinear bending stability of a long flexible cylindrical shell with geometrical imperfections. The shell wall imperfection in the form of bulging in long half-wave is modeled using a software package for finite-element analysis. Prebuckling and postbuckling behavior of an imperfect shell in bending is studied. The critical normal stress in the shell compression zone is plotted vs. the imperfection amplitude. The bending stability region is determined for a shell with geometrical imperfections.

Keywords

nonlinear stability flexible cylindrical shell geometrical imperfection finite-element method bending 
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Copyright information

© Springer Science+Business Media New York 2016

Authors and Affiliations

  • V. A. Bazhenov
    • 1
  • O. O. Luk’yanchenko
    • 1
  • O. V. Kostina
    • 1
  • O. V. Gerashchenko
    • 1
  1. 1.Research Institute for Structural Mechanics of the Kyiv National University of Construction and ArchitectureKyivUkraine

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