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

The Korean Society of Mechanical Engineers (대한기계학회)
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A Change and Prediction of Biaxial Fatigue Life of Cast Duplex Stainless Steels by Degradation

2상 주조 스테인리스강의 열화로 인한 2축 피로수명의 변화와 예측

  • 권재도 (영남대학교 기계공학부) ;
  • 박중철 (영남대학교 공업기술 연구소)
  • Published : 2004.04.01
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Abstract

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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References

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