多連切欠き材の疲れ挙動について-2-切欠きの干渉が平面曲げ疲れ特性に及ぼす影響について
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概要
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Fatigue crack initiation and propagation in flat bar specimens with multiple notches of carbon steels for machine structural uses, S35C, were examined in plane bending. The results obtained are summarized as follows; 1) The effects of the interaction of closely spaced notches were found on crack initiation and propagation, and the effect of an even numbers of notches was found larger than that of odd ones. 2) The ratio of crack propagation period to fatigue life increased with the number of notches. 3) In general, the number of cycles at crack initiation depended on the stress intensity factor. 4) The crack length at the inflection point in the fatigue crack growth rate curve became shorter with the number of notches.
- 鹿児島大学,カゴシマ ダイガク,Kagoshima Universityの論文
鹿児島大学,カゴシマ ダイガク,Kagoshima University | 論文
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