A postbuckling analysis is presented for a stiffened cylindrical shell of finitelength subjected to combined loading of external pressure and uniform temperaturerise. The formulations are based on a boundary layer theory of shell buckling, whichincludes the effects of nonliear prebuckling deformations, nonlinear large deflectonsin the postbuckling range and initial geometrical imperfections of the shell. The"smeared sitffener" approach is adopted for the sitffeners. The analysis uses a singular perturbation technique to determine the interactive buckling loads and the postbucklingequilibruium paths. Numerical examples cover the performances of perfect and imperfect, stringer and ring stiffened cylindrical shells. Typical resuts are presented in dimensionless graphical form.
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