On the Ultimate Strength of Cylinders with U-Type Longitudinal Stiffeners

摘要

Results from an experimental and theoretical study of the cylinder with U type longitudinal Stiffeners on buckling and ultimate strength are reported. In the experimental investigation, combined loading (axial, moment and shear) tests were conducted on longitudinally stiffened cylinders with sixty U-type Stiffeners. In the theoretical investigation, FEM analyses by use of the computer program MSC/DYTRAN for the ultimate strength of the stiffened cylinder were conducted. From the parametric FEM analyses, it was clarified that the thickness of the cylinder and the stiffener exert decisive influences upon the buckling and ultimate strength.