대한기계학회논문집A (Transactions of the Korean Society of Mechanical Engineers A)

  • 제28권4호
  • /
  • Pages.410-418
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  • 2004
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  • 1226-4873(pISSN)
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  • 2288-5226(eISSN)
대한기계학회 (The Korean Society of Mechanical Engineers)
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2상 주조 스테인리스강의 열화로 인한 2축 피로수명의 변화와 예측

A Change and Prediction of Biaxial Fatigue Life of Cast Duplex Stainless Steels by Degradation

  • 권재도 (영남대학교 기계공학부) ;
  • 박중철 (영남대학교 공업기술 연구소)
  • 발행 : 2004.04.01
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초록

The multiaxial fatigue test under in-phase and out-of$.$phase load were performed to study what degradation phenomenon affects fatigue life with virgin and 3600 hrs degraded materials. The various kind of fatigue data fur fatigue life prediction were acquired under pure axial and pure torsional load of fully reversal condition. The models which was investigated are: 1) the von Mises equivalent strain range, 2) the critical shear plane approach method of Fatemi-Socie(FS) parameter, 3) the modified Smith-Watson-Topper(SWT) parameter. The result showed that, fatigue life by material degradation are decreased and life prediction which was used the FS parameter is not conservative but the best result.

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참고문헌

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