Mean Stress in Algorithms Estimating Fatigue Life of Selected Structural Materials

Abstract:

The paper presents comparison of the mathematical models for fatigue life calculations including influence of the mean load value. Several model based on stress analysis on the critical plane and energy density parameter were investigated. In this paper three types of materials were tested and subjected to bending, torsion and combination of bending with torsion loading with the participation of mean value of the load. It was found, that the best fatigue life estimations obtained by models taking into account changes of the material behavior under fatigue loading related to the specified numbers of cycles of the load.

• Periodical: Solid State Phenomena (Volume 250)
• Pages: 50-55
• DOI: https://doi.org/10.4028/www.scientific.net/SSP.250.50
• Online since: April 2016
• Authors: Krzysztof Kluger, Roland Pawliczek*
• Keywords: Bending, Fatigue Life, Mean Stress, Multiaxial Stress, Torsion

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