疲労破面粗さに基づく作用応力推定

書誌事項

タイトル別名
  • Quantitative Evaluation of Applied Stress by Surface Roughness for Fatigue Fracture.
  • ヒロウ ハメン アラサ ニ モトズク サヨウ オウリョク スイテイ

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抄録

Quantitative evaluation of applied stress by fractography is not always easy if fatigue striations are not seen on the fatigue fracture surface. The authors have often experienced such a problem in case of industrial machines which failed under low vibrational stress. In this report, the quantitative characterization of the fatigue crack surface created by low stress amplitude is attempted. A good correlation between the proposed surcace roughness parameter (S1) and the stress intensity factor range (ΔK) was obtained for low ΔK level. This technique is expected to be a supplemental method of quantitative stress evaluation of fractured component.

収録刊行物

  • 材料

    材料 40 (453), 712-717, 1991

    公益社団法人 日本材料学会

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