About the regularities of fatigue fracture and fatigue strength due to the influence of asymmetry of the tension cycle

Authors

  • V. P. BAGMUTOV
  • A. A. BELOV Volgograd state technical univercity
  • V. I. VODOPYANOV
  • O. V. KONDRATYEV

DOI:

https://doi.org/10.5755/j01.mech.24.5.14474

Keywords:

fatigue fracture, the asymmetry cycle ratio, 45 steel, titanium alloy PT-3V, the curve of fatigue

Abstract

The fatigue curves are obtained and the regulari-ties of the effect of the tensile cycle asymmetry in the range –2 ≤ R ≤ 0.5 on the length and position of the transi-tion section of the fatigue curve of steel 45 and titanium alloy PT-3V are investigated. Diagrams of limit amplitudes for the studied alloys are constructed. A method for calcu-lating the position and length of the transition stage of the fatigue curve is proposed.

DOI: http://dx.doi.org/10.5755/j01.mech.24.5.14474

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Published

2018-11-08

Issue

Vol. 24 No. 5 (2018)

Section

MECHANICS OF SOLID BODIES

License

The copyright for the articles in this journal is retained by the author(s) with the first publication right granted to the journal. The journal is licensed under the Creative Commons Attribution License 4.0 (CC BY 4.0).