Energy Based Approach Calculations of Machine Components Fatigue Life

Abstract:

The purpose of this paper is to present a method for fatigue life calculations in energy based approach (hybrid method) and its experimental verification. Tests were performed for C45 steel. It was found, on the basis of experimental tests, that the diagram of fatigue life in energy approach is characterized by higher value of determination coefficient R² than the diagram of fatigue life in stress based approach (both for constant amplitude and programmable loading). A comparative analysis of calculation results and experimental tests results revealed that for two-step loading the relative difference in results depends on the maximal value of stresses in the spectrum.

• Periodical: Solid State Phenomena (Volume 250)
• Pages: 100-105
• DOI: https://doi.org/10.4028/www.scientific.net/SSP.250.100
• Online since: April 2016
• Authors: Bogdan Ligaj*, Grzegorz Szala
• Keywords: 1045 Steel, C45 Steel, Calculations of Fatigue Life, Stress-Strain Loops

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