The effect of material hardness and mean stress on the fatigue limit of steels containing small defects

Y. Kondo, C. Sakae, M. Kubota, T. Kudou

    研究成果: ジャーナルへの寄稿学術誌査読

    32 被引用数 (Scopus)

    抄録

    Fatigue tests on material containing small defects were performed under a wide range of mean stress for three grades of steels with different hardness. The ΔKth of small defects had a peculiar dependency on material hardness and mean stress, which was quite different from those of long cracks or plain specimens. The crack closure of short cracks was measured. It was shown that the formation of the crack closure was affected by the material hardness and mean stress. This behaviour of crack closure resulted in characteristic fatigue limit properties of materials containing small defects.

    本文言語英語
    ページ(範囲)675-682
    ページ数8
    ジャーナルFatigue and Fracture of Engineering Materials and Structures
    26
    8
    DOI
    出版ステータス出版済み - 8月 2003

    !!!All Science Journal Classification (ASJC) codes

    • 材料科学(全般)
    • 材料力学
    • 機械工学

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