圧縮および引張荷重を受ける構造要素の変形挙動 : 第1報 : 繰返し荷重を受ける柱の変形挙動

概要

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Offshore structures are always subjected to periodic forces by waves and winds. Therefore, it is essential for the persuit of safety to conduct studies of the behavior of deformation and fatigue strength of structural member under compressive and tensile loads. Experiments were performed on the behavior of deformation of a column with rectangular cross section, which was the simplest structural member, under compressive and tensile loads, and on the fatigue strength in repeated loading. Also, a simple combined perfectly elastic analysis and perfectly plastic analysis was made, as well as an elasto-plastic analysis. Good agreements were shown between the results of these analyses and ones of experiments for the relation between loads and deflections of a column. Especially, the latter analysis is able to take the effect of residual stress into consideration, and its effect on the maximum compressive loads was shown. Furthermore, in fatigue test of a column, it was found the results of this study agreed with the results of standard uniaxial fatigue test.
社団法人日本船舶海洋工学会の論文