Fatigue Life Calculation in Conditions of Wide Spectrum Random Loadings – The Experimental Verification of a Calculation Algorithm on the Example of 41Cr4 Steel

Abstract:

Precision of fatigue life calculations of structural elements in programmed loading conditions is connected with proper elaboration of loading spectrum and assumption of a proper fatigue characteristic. On the base of literature data and own research there has been elaborated an algorithm for fatigue life calculations in random loading conditions with wide spectrum. Calculations were performed with the usage of chosen mathematical models of two-parametric fatigue characteristics. Results calculated with accordance to the described procedure were validated with experimental test results of specimens made of 41Cr4 steel with a method of programmed fatigue life tests.

• Periodical: Materials Science Forum (Volume 726)
• Pages: 17-26
• DOI: https://doi.org/10.4028/www.scientific.net/MSF.726.17
• Online since: August 2012
• Authors: Bogdan Ligaj, Grzegorz Szala
• Keywords: Algorithm of Fatigue Calculations, Fatigue Life of Steel, Programmed Fatigue Testings, Random Loading

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DOI: 10.2478/v10012-010-0004-5

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