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Comparative analysis of fatigue life calculation methods of C45 steel in conditions of variable amplitude loads in the low- and high-cycle fatigue ranges

Abstract

In the paper [1] assumptions for fatigue life calculations in the low- and high- cycle fatigue ranges of metal alloys, have been formulated. Three calculation methods: that expressed in stresses, strains and a mixed (stress-strain) one, have been there presented. In this paper results of fatigue life calculations of C45 steel performed in line with the above mentioned methods have been described, and their comparative analysis has been made. The calculations have been carried out for two-level and multi-level load programs of the varying parameters: maximum load within a load program and different values of spectrum filling factor. The comparative analysis of the results of fatigue life calculations in compliance with the above mentioned methods makes it possible to assess differences in the results and depenendence of the differences on values of load program parameters.

Keywords:

fatigue life calculations, low- and high- cycle fatigue, C45 steel

Details

Issue
Vol. 19 No. 4(75) (2012)
Section
Latest Articles
Published
26-01-2013
DOI:
https://doi.org/10.2478/v10012-012-0037-z
Licencja:
Creative Commons License

This work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.

Open Access License

This journal provides immediate open access to its content under the Creative Commons BY 4.0 license. Authors who publish with this journal retain all copyrights and agree to the terms of the CC BY 4.0 license.

 

Author Biographies

Bogdan Ligaj,
University of Technology and Life Science, Faculty of Mechanical Engineering



Grzegorz Szala,
University of Technology and Life Science, Faculty of Mechanical Engineering



Authors

  • Bogdan Ligaj

    University of Technology and Life Science, Faculty of Mechanical Engineering
  • Grzegorz Szala

    University of Technology and Life Science, Faculty of Mechanical Engineering

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