縦曲げにおける横断面の反りを考慮した薄肉変断面梁の変形解析法に関する研究

概要

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The authors had presented the analytical method of stress distributions for thin-walled variable cross section beam with consideration of "warping in bending". In above report, we pointed out that the effects of "warping in bending" could not be neglected under the load condition in which the rate of change of shearing force became large. In this paper, at first, we have tried to deduce the analytical method of elastic deformations for thin-walled variable cross section beam with consideration of "warping in bending". The present method consisted of the deformational responses based on ref. and the new deformational response, which had been deduced as one of the natural boundary condition in A Variational Approach. Next, applying this new method to the mono-symmetric I-section beams and a double hull tanker, we carried out the calculation of deformational responses taking into consideration of "warping in bending" and also have evaluated and compared the deformational responses of the present method with those of Timoshenko's beam theory.
社団法人日本船舶海洋工学会の論文
2000-03-29