き裂状表面欠陥を有するステンレス鋼の疲労限度および下限界応力拡大係数範囲に及ぼす過大予荷重の影響 Effects of Overload on Fatigue Limit and ΔK_<th> of SUS31 6 Having a Crack-like Surface Defect

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The effects of overload on the fatigue limit and threshold stress intensity factor range (Δ<I>k</I><sub>th</sub>) of SUS316 were studied. Tensile or compressive overload were applied to the bending fatigue test specimens with a small crack-like surface defect and fatigue tests were carried out to determine the fatigue limit and Δ<I>k</I><sub>th</sub>. It was found that the Δ<I>k</I><sub>th</sub> increased by tensile overloading. The increasing rate of Δ<I>k</I><sub>th</sub> in the CT specimen is larger than that in the bending fatigue test specimen with a small crack-like surface defect. Thus, the crack size effects on the improvement of Δ<I>k</I><sub>th</sub> after overloading were observed. The results are discussed from the viewpoint of fracture mechanics.

収録刊行物

  • 圧力技術 = Pressure engineering : journal of Japan High Pressure Institute

    圧力技術 = Pressure engineering : journal of Japan High Pressure Institute 50(4), 194-199, 2012-07-25

    一般社団法人 日本高圧力技術協会

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各種コード

  • NII論文ID(NAID)
    10030955849
  • NII書誌ID(NCID)
    AN00011762
  • 本文言語コード
    JPN
  • 資料種別
    ART
  • ISSN
    03870154
  • NDL 記事登録ID
    023914841
  • NDL 請求記号
    Z17-750
  • データ提供元
    CJP書誌  NDL  J-STAGE 
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