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Postbuckling of Imperfect Stiffened Cylindrical Shells Under Combined External Liquid Pressure and Axial Compression
Authors:Shen Huishen  Professor
Institution:Shen Huishen Professor,Department of Civil Engineering. Shanghai Jiao Tong University. Shanghai 200030
Abstract:- posthuckling analysis is presented for the stilTened cylindrical shell of finite length subjected to combined loading of external liquid pressure and axial compression. The formulations are based on a boundary layer theory of shell buckling, which includes the effects of nonlinear prebuckling deformations, nonlinear large deflections in the postbuckling range and initial geometrical imperfections of the shell. The "smeared stifl'cner" approach is adopted for the stiffencrs. In the analysis a singular perturbation technique is used (o determine the interactive buckling loads and the postbuckling paths. Numerical examples cover the performance of perfect and imperfect, stringer and ring stiffened cylindrical shells. Typical results arc presented in the dimcnsionless graphical form.
Keywords:structural stability  ptwtbuckling  stiffened cylindrical shell  combined loading  boundary layer theory of shell buckling  singular perturbation technique  
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