Abstract
The aim of the present paper is to clarify experimentally the inelastic restoring force chracteristic and the mechanical behaviors of a cantilevered circular cylindrical shell made of steel, such as an oil tank and a silo, under subjecting to a laterally and statically repeated end load at the free end, in which the cylinder contains nothing. Seconderily, from comparing the experimental results with numerical ones by the Flugge's shell theory for an end load, the treatment of the exact boundary conditions is shown to be important in the shell analysis. Thirdly, the beam analogy theory to such a cantilevered circular cylinder is presented to be an effective analytical method instead of the shell theory.