円筒容器の動的座屈に関する実験的研究 : 第3報、横荷重と軸圧縮荷重および振動台加振下での座屈モードの比較検討

概要

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Cylindrical shell structures are used for many storage tanks and containment vessels. In these designs, seismic strength should be taken into account. In this paper, the interactive relations of static buckling between lateral and axial loads, and dynamic buckling under harmonic excitation are studied for fluid-filled and empty tanks, which are opened or closed at the upper ends. Static and dynamic buckling tests are carried out, using small polyester tanks. The static buckling stress criterion for a long cylinder subjected to pure bending is applied to the test results of the fluid-filled tanks under harmonic excitation. the static buckling stress criterion, considering the ovalization of the cross section, is also applied to the test results for empty tanks under harmonic excitation. The static buckling criteria prove to be fairly applicable to both fluid-filled and empty tanks in the restricted region under the natural frequency of the fundamental mode.
社団法人日本機械学会の論文
1989-09-25