Prediction of fatigue characteristics of metals at different loading frequences

The procedure for predicting fatigue characteristics by high-frequency test results over lifetime ranges up to 1010 cycles is proposed. The procedure is based on the fatigue fracture model accounting for the loading frequency and stress ratio. The potentials of the method are exemplified br the test...

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Bibliographic Details
Published in:Strength of materials 2004-07, Vol.36 (4), p.442-448
Main Authors: YAKOVLEVA, T. Yu, MATOKHNYUK, L. E
Format: Article
Language:English
Subjects:
Exact sciences and technology
Fundamental areas of phenomenology (including applications)
Physics
Solid mechanics
Structural and continuum mechanics
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Summary:The procedure for predicting fatigue characteristics by high-frequency test results over lifetime ranges up to 1010 cycles is proposed. The procedure is based on the fatigue fracture model accounting for the loading frequency and stress ratio. The potentials of the method are exemplified br the tests of smooth specimens and specimens with a stress concentrator from different materials (nickel-, aluminum-, and titanium-base alloys). The prediction results for different loading frequencies (35-10,000 Hz) and stress ratios (from -1 to 0.5) are shown to vary by about 10% from experimentally obtained data.
ISSN:0039-2316
1573-9325
DOI:10.1023/B:STOM.0000041545.08426.7d