U字型鋼で補強された薄肉円筒の最終強度に関する研究

概要

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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 60 U-type stiffeners. The thickness of the cylinder and the stiffeners are 1mm, 1.2mm respectively, and the diameter of the models are 2500mm. In the theoretical investigation, FEM analyses by use of the computer program MSC/DYTRAN for the ultimate strength of the stiffened cylinder were conducted. The calculated results were in good agreements with experimental ones. From the parametric FEM analyses, it was clarified that the thickness of the cylinder and the stiffener exert decisive influence upon the ultimate strength.
社団法人日本船舶海洋工学会の論文
1998-09-25