欠陥を有する溶接部の変形能力に関する研究 : T 継手突合せ溶接部の低サイクル塑性疲労実験その 1

概要

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The low cycle plastic fatigue tests of defective butt welded T-joints were carried out. From the results, the following summaries were obtained. (1) Comparing the reduction of area of T-joints which breaks at near the end of joints with the one of their material, the former is under 1/2 of the latter. (2) The relation between plastic strain amplitude and number of cycles to failure of T-joints can be expressed by Manson-Coffin's formula. k_p and C_p are the function of the fracture ductility. (3) The uniform elongation of the T-joints is proportional to the fracture ductility, and by employing the uniform elongation both the relation between strain amplitude and number of cycles to failure and the relation between strain amplitude and total hysteresis energy can be expressed by Manson-Coffin's type formula.
社団法人日本建築学会の論文
1980-02-28