PROBLEMS OF EQUIVALENT LOAD AMPLITUDE IN FATIGUE LIFE CALCULATIONS
This paper presents issues of fatigue life calculations in operational load conditions. The assumed runs were so processed as to get a set of sinusoidal cycles by using the following methods: full cycles counting method and rainflow counting method. On the basis of such sets of cycles of the varying parameters Smi and Sai were prepared block load spectra of equivalent amplitudes Saz, obtained with the use of an original method of these authors, in which two-parameter fatigue characteristics were applied. The work resulted in comparison of fatigue life results for load spectra determined by using the assumed cycles counting methods and the assumed two parameter fatigue characteristics: the model IM, model II, model III and model IV, respectively.
Keywords:operational load, equivalent load amplitude, two-parameter fatigue characteristics, fatigue life
- Vol. 23 No. 1(89) (2016)
- Latest Articles
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.