Plastic Buckling of Stiffened Torispherical Shell

This paper uses the nonlinear prebuckling consisten theory to analyse the plasticbuckling problem of of stiffned torispherical shell under uniform exlernal pressure. Thebuckling equation and energy expressions of the shell are built. the calculation formulais presented Numerical examples show that method in ths paper has betterprecision and the calculating process is very simple.