横圧力と同時に縁圧縮応力をうける矩形板の座屈

概要

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Many parts of ship structures, such as bottom plating, are subjected to edge thrusts and lateral pressure at the same time, In this paper, the behavior of a plate under increasing edge thrusts and constant lateral pressure is investigated. Such a plate deflects from the beginning, and the deflection increases continuously with load. When lateral pressuer is large enough, the deflection pattern is similar to that due to lateral pressure alone, and any definite critical state does not appear. When the lateral pressure is small, buckling pattern appears under the edge thrust of a certain value. Such behaviors are investigated theoretically and experimentally, and a good accordance between the theory and the tests are obtained. Within the elastic range, the critical value of edge thrusts usually incereases with lateral pressure. When the plate is stressed beyond elastic limits, the critical stress is lowered by the effect of plastic deformations.
社団法人日本船舶海洋工学会の論文