損傷を有する円筒部材の耐荷力に関する研究

概要

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A method of analysis is proposed to accurately simulate the behaviour of a tubular member accompanied by local denting and overall bending damages. It consists of three parts which are elastic matrix analysis, elastic-plastic numerical analysis to determine the ultimate strength and elastic-plastic matrix analysis after the ultimate strength. The validity of the proposed method is demonstrated by comparing the calculated results with the existing experimental results. A series of parametric studies is also performed to examine the combined influences of local denting and overall bending damages on the ultimate strength of tubular members. It is found that the loss of the strength is insensitive to the length and the location of a dent, but is sensitive to the depth of a dent and the magnitude of overall bending damage.
社団法人日本船舶海洋工学会の論文
1987-03-01