パイプ円周溶接により生ずる残留応力に関する一解法

概要

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The residual stress distribution brought about by a circumferential weld between two pipes (cylindrical shells) is quite different from that by a butt weld between two flat plates. Many researches are brought out, and the reasons for the difference are pointed out and shown. The paper presents the analytical model and the computer method. The first part deals with the state of stress and the residual stress distribution in a thin-walled cylinder, under the distribution of "inherent stress" due to weld shrinkage. Then the formula is presented for estimating the "inherent stress"; that depends upon the welding parameters and the material property (yield stress). In the final part of the paper, the analytical results are compared with experimental results. The analytical results show good agreement with the experimental results.
社団法人溶接学会の論文
1982-02-05