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학술연구/단체지원/교육 등 연구자 활동을 지속하도록 DBpia가 지원하고 있어요.
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Uniaxial and biaxial torsional fatigue tests were conducted on the samples extracted from urban railway wheel steel. Ultimate and yield strengths of the steel were 1027.7 MPa and 626 MPa, respectively. The uniaxial fatigue limit was 422.5 MPa, corresponding 67% of the ultimate tensile strength. The ratio of ${\tau}_e/{\sigma}_e$ was 0.63. Fatigue strength coefficient and exponent were 1319.5 MPa and 0.339, respectively. Maximum principal and equivalent strain were found to be adequate parameter to predict fatigue lifetime of the steel under multiaixal fatigue condition.
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참고문헌 (8)
참고문헌 신청
Bernasconi A. / 2006 / Multiaxial fatigue of a railway wheel steel under non-proportional loading / Int. J. of Fatigue 28(5):663~672
Ahlstrὂm J. / 2009 / Modified railway wheel steels: Production and evaluation of mechanical properties with 140emphasis on low-cycle fatigue behavior / Met. Mat. Trans. A 40(7):1557~1567
Okagata Y. / 2007 / Fatigue strength evaluation of the Japanese railway wheel / Fatigue Frac. Eng. Mat. Struc. 30(4):356~371
Wagner V. / 2011 / Cyclic deformation behaviour of railway wheel steels in the very high cycle fatigue (VHCF) regime / Int. J. of Fatigue 33:69~74
허현무 / 2004 / 철도차량용 차륜재 물성시험 분석 연구 / 한국철도학회 학술대회논문집 :153~157
Ahlstrὂm J. / 2009 / Modified railway wheel steels: Production and evaluation of mechanical properties with 140emphasis on low-cycle fatigue behavior / Met. Mat. Trans. A 40(7):1557~1567
Okagata Y. / 2007 / Fatigue strength evaluation of the Japanese railway wheel / Fatigue Frac. Eng. Mat. Struc. 30(4):356~371
Wagner V. / 2011 / Cyclic deformation behaviour of railway wheel steels in the very high cycle fatigue (VHCF) regime / Int. J. of Fatigue 33:69~74
허현무 / 2004 / 철도차량용 차륜재 물성시험 분석 연구 / 한국철도학회 학술대회논문집 :153~157
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