The Paton Welding Journal, 2008, №12

2008 №12 (05)

2008 №12 (07)

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The Paton Welding Journal, 2008, #12, 25-31 pages

Determination of cyclic fatigue life of materials and welded joints at polyfrequency loading

V.S. Kovalchuk

E.O. Paton Electric Welding Institute of the NASU. 11 Kazymyr Malevych Str., 03150, Kyiv, Ukraine.

Abstract
Procedure and analytical dependences are proposed for calculation of cyclic fatigue life of materials, as well as welded joints at polyfrequency loading by the initial data, corresponding to the single-frequency loading. Conducted experimental verification of the derived dependences on large-scale samples, including welded samples, confirmed their validity in a broad range of variation of polyfrequency loading parameters, the spectrum of which consists of 3–7 components.
Keywords: metal structures, welded joints, polyfrequency loading, cyclic fatigue life, calculation

References

1. Buglov, E.G., Filatov, M.Ya., Kolikov, E.A. (1973) Resistance of materials at bifrequency loading (Review). Problemy Prochnosti, 5, 13–17.
2. Trufyakov, V.I., Kovalchuk, V.S. (1982) Determination of fatigue life at bifrequency loading. Report 1: Review. Ibid., 9, 9–15.
3. Geminov, V.N. (1967) About physical principles of the methods of damage summation under nonstationary loading conditions (Review). In: Strength of materials at cyclic loads. Moscow: Nauka.
4. Troshchenko, V.T., Sosnovsky, L.A. (1987) Fatigue resistance of metals and alloys: Refer. Book. Pt 1. Kiev: Naukova Dumka.
5. Trufyakov, V.I., Kovalchuk, V.S. (1982) Determination of fatigue life at bifrequency loading. Report 2: Proposed procedure. Problemy Prochnosti, 10, 15–20.
6. Kovalchuk, V.S. (1991) Influence of loading frequency on fatigue resistance of steels and welded joints. Avtomatich. Svarka, 1, 30–34.

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Suggested Citation

V.S. Kovalchuk (2008) Determination of cyclic fatigue life of materials and welded joints at polyfrequency loading<. The Paton Welding J., 12, 25-31.

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