Effect of Oil Viscosity on the Fatigue Limit of Drilled Specimens and the Small Crack Growth Law
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概要
- 論文の詳細を見る
Rotating bending fatigue tests of an annealed 0.34% carbon steel smooth specimen with a small blind hole were carried out using four types of base oils in order to evaluate the effect of oil viscosity on the fatigue limit and small crack growth law. The results showed that there was a limited effect from the oils on the fatigue limit, but that the small-crack growth law, dl/dN=C_1σ^n_al, was affected by the oils and value of n tended to increase with an increase in the viscosity of oil; n≅8 in air, n≅10 in the lower viscosity oils and n≅11 in the higher viscosity oils. These phenomena were accounted for by the penetration of the oils into the cracks.
- 一般社団法人日本機械学会の論文
- 1989-07-15
著者
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Gotoh Masahiro
The Second Department Of Internal Medicine Gifu University School Of Medicine
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Goto Masahiro
The Second Department Of Internal Medicine Gifu University School Of Medicine
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Goto Masahiro
Department Of Mechanical Engineering Oita University
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Nisitani Hironobu
Faculty of Engineering, Kyushu University
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MIYAGAWA Hiroomi
Department of Mechanical Engineering, Oita University
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GOTO Masahiro
Faculty of Engineering, Oita University
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MIYAGAWA Hiroomi
Faculty of Engineering, Oita University
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YANAGAWA Yasuhiro
Toto Ltd.
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Miyagawa Hiroomi
Faculty Of Engineering Oita University
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Nisitani H
Department Of Mechanical Engineering Kyushu Sangyo University
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Nisitani Hironobu
Faculty Of Engineering Kyushu University
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Goto Masahiro
Faculty Of Engineering Kyushu University
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