Strength of Materials

, Volume 40, Issue 3, pp 343–349 | Cite as

Determination of parameters of an exponential function in the description of a fatigue curve

  • B. S. Shul’ginov
Article
First Online:
Received:

Abstract

We propose simple methods for the determination of parameters of an exponential function used for the description of a fatigue curve. It is shown that the fatigue curve described by this function fits experimental points obtained in fatigue tests of specimens better than in the case power and hyperbolic functions used in normative documents.

Keywords

fatigue strength fatigue curve fatigue limit exponential function 
This is a preview of subscription content, log in to check access.

Preview

Unable to display preview. Download preview PDF.

Unable to display preview. Download preview PDF.

References

  1. 1.
    V. I. Trufyakov, Fatigue of Welded Joints [in Russian], Naukova Dumka, Kiev (1973).Google Scholar
  2. 2.
    RD 50-551-85. Methodical Instructions. Strength Analysis and Tests. Computational and Experimental Methods for the Assessment of the Fatigue Resistance of Welded Joints [in Russian]. Introduced 01.01.81.Google Scholar
  3. 3.
    A. Hald, Statistical Theory with Engineering Applications, Wiley, New York (1952).Google Scholar
  4. 4.
    GOST 25.502-93. Strength Analysis and Tests in Machine Building. Methods for Mechanical Testing of Materials. Methods for Fatigue Tests [in Russian]. Introduced 01.01.81.Google Scholar
  5. 5.
    Norms for the Calculation and Assessment of the Strength of Load-Bearing Elements, Dynamic Properties, and the Action on the Path of Locomotive Underframes of the MPT RF for a 1520 mm Railway Track [in Russian], VNIIZhT, Moscow (1998).Google Scholar
  6. 6.
    B. S. Shul’ginov, V. V. Matveev, and A. P. Kolomiets, “On the use of hyperbolic function to describe fatigue S-N curve,” Strength Mater., 39, No. 4, 392–400 (2007).CrossRefGoogle Scholar
  7. 7.
    V. T. Troshchenko and L. A. Sosnovskii, Fatigue Strength of Metals and Alloys. A Handbook [in Russian], Part 1, Naukova Dumka, Kiev (1987).Google Scholar
  8. 8.
    B. S. Shul’ginov and A. P. Kolomiets, “On the utilization of power function for the description of fatigue test results,” Strength Mater., 39, No. 3, 331–337 (2007).CrossRefGoogle Scholar
  9. 9.
    V. V. Matveev, “Substantiation of the use of strain criteria for multicycle fatigue failure of metals. Communication 1. Analysis of known approaches,” Strength Mater., 26, No. 5, 328–336 (1994).CrossRefGoogle Scholar

Copyright information

© Springer Science+Business Media, Inc. 2008

Authors and Affiliations

  • B. S. Shul’ginov
    • 1
  1. 1.Pisarenko Institute of Problems of StrengthNational Academy of Sciences of UkraineKievUkraine

Personalised recommendations