Applied Mathematics and Mechanics (English Edition) ›› 1997, Vol. 18 ›› Issue (5): 493-502.

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KOITER-BOUNDARY LAYER SINGULAR PERTURBATION METHOD FOR AXIAL COMPRESSED STIFFENED CYLINDRICAL SHELLS

Sun Haihong1, Chen Tieyun 2   

  1. 1. Wuhan Transportation University. Wuhan 430063, P. R. China;
    2. Shanghai Jiaotong University, Shanghai 200030, P. R. China
  • Received:1995-10-05 Online:1997-05-18 Published:1997-05-18

Abstract: The double singularities induced by bifurcation point and boundary layer in nondimensionalized nonlinear boundary-layer Karman-Donnell equations for axiallycompressed stiffened cylindrical shells can be treated by Koiter-boundary layersingular perturbation method in this paper. It is demonstrated that the method hashigh computing efficiency and accuracy based on the analysis of AS-2 shell, and somenew conclusions can be directiy obtained from the perturbation formulas which arevery well in agreement with experimental phenomenon of axially compressed stiffenedcylindrical shells.

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