@article{oai:ir.kagoshima-u.ac.jp:00002186,
 author = {若原, 稔 and WAKAHARA, Minoru and 皮籠石, 紀雄 and KAWAGOISHI, Norio and 末永, 勝郎 and SUENAGA, Katsuro},
 journal = {鹿児島大学工学部研究報告, The research reports of the Faculty of Engineering, Kagoshima University},
 month = {Nov},
 note = {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.},
 pages = {207--214},
 title = {多連切欠き材の疲れ挙動について : 第二報 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},
 volume = {30},
 year = {1988}
}