FATIGUE LIFE ASSESSMENT WITH THE USE OF THE SPECTRAL METHOD FOR NON-GAUSSIAN LOADING HISTORIES WITH THE USE OF THE ENERGY PARAMETER
Journal Title: Journal of Machine Construction and Maintenance - Year 2018, Vol 108, Issue 1
Abstract
The objective of the paper is to calculate fatigue life with the use of the spectral method for 10HNAP steel under non-Gaussian loading conditions with the use energy parameter and non-Gaussian correction. The energy parameter has not yet been used in the frequency domain for fatigue calculations under non-Gaussian loading conditions. Some calculations regarding the energy parameter and spectral method have been performed by Banvilett et al. [1] for the case with non-Gaussian loading but with no non-Gaussian correction. In terms of non-Gaussian correction recently, a paper has been published by Niesłony et al. [20] where the authors are using a correction factor presented by Bracessi et al. [8], and it is used to correct the damage degree of the loading signal. The correction factor used in the calculations has been modified to address the specific description of the Wa-Nf curve. The results for the energy parameter have been compared with results for the stress calculation with spectral method with the use of the Bracessi correction factor.
Authors and Affiliations
Michał BöHM, Tadeusz ŁAGODA
Keywords
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