Further Studies on the Effect of In-Plane Boundary Conditions on the Buckling of Stiffened Cylindrical Shells.

摘要

The effects of in-plane boundary conditions on the buckling loads of simply supported shells, stiffened by rings and stringers is studied. The effects differ appreciably from those in isotropic or ring stiffened shells and are considerably dependent upon stiffener geometry and location. The axial restraint, u = O, is the predominant factor and the 'weak in shear', N sub x phi = O, boundary conditions have only a minor influence. The critical loads corresponding to the SS2 and SS4 boundary conditions are appreciably raised compared to the ones obtained for the 'classical' boundary conditions and the effect is more emphasized for internal stringers. The loads corresponding to the SS1 conditions are almost identical with the 'classical' critical loads. (Modified author abstract)