Some Considerations of Frequency and Wave Form Effects in Fatigue of Copper Based on Dislocation Dynamics
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概要
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The effects of the cyclic frequency and the stress wave form on the fatigue strength have been investigated by many investigators, but the physical meaning of the frequency and wave form dependent fatigue behavior has not been elucidated. In the present work, an analysis of these effects was made employing a modified Johnston-Gilman's formula. The experimantal results, which were obtained from fatigue tests performed under the sinusoidal, the triangular and the rectangular stress waves and under the cyclic frequency range from 0.2 to 60c/s, were well explained by the present analysis. Particularly, the frequency effect on fatigue strength was well interpreted in terms of the dislocation motion over a wide range of cyclic frequencies.
- 一般社団法人日本機械学会の論文
著者
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Yamada Toshiro
Department Of Mechanical Engineering Faculty Of Engineering Kyoto University
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Hatanaka Kenji
Department Of Biomaterials Okayama University Graduate School Of Medicine Dentistry And Pharmaceutic
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Yokawa Shintaro
Engineer, Sumitomo Shipbuilding and Machinery Co., Ltd.
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Hatanaka Kenji
Department Of Mechanical Engineering Faculty Of Engineering Kyoto University
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Yokawa Shintaro
Engineer Sumitomo Shipbuilding And Machinery Co. Ltd.
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YAMADA TOSHIRO
Department of Chemical Engineering, Kanazawa University
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