Proceedings of the KSR Conference (한국철도학회:학술대회논문집)
- 2011.10a
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- Pages.621-629
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- 2011
Evaluation of Multiaxial Fatigue Strength of a Urban Railway Wheel Steel
도시철도 차량 차륜재의 다축 피로강도 평가
Abstract
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
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