MULTIAXIAL FATIGUE OF A RAILWAY WHEEL STEEL

被引：0

作者：

Chung, Chin-Sung ^{[1
]}

Kim, Ho-Kyung ^{[2
]}

机构：

[1] Flow Master Co, R&D Ctr, Seoul 150105, South Korea

[2] Seoul Natl Univ Sci & Technol, Dept Automot Engn, Seoul, South Korea

来源：

JOURNAL OF ENGINEERING SCIENCE AND TECHNOLOGY | 2015年 / 10卷 / 09期

关键词：

Fatigue strength; Multiaxial fatigue; Railway wheel steel; SWT fatigue parameter;

D O I：

暂无

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Uniaxial and biaxial torsional fatigue specimens were extracted from a railway wheel steel. The fatigue tests were performed with the stress ratio of R= -1 by using uniaxial and biaxial torsional fatigue test specimens at room temperature in air. The ultimate and yield strengths of the steel were evaluated. The uniaxial fatigue limit was 422.5 MPa, which corresponds to 67% of the ultimate tensile strength. The ratio of tau(e)/sigma(e) was 0.63. Appropriate parameters to predict the fatigue life of the steel under multiaxial stress states were reviewed.

引用

页码：1215 / 1223

页数：9

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