MATEC Web Conf.
Volume 338, 202134th Scientific Conference: Problems of Working Machines Development (PRMR 2021)
|Number of page(s)||11|
|Published online||25 June 2021|
Application of variable equivalent amplitude for determination of fatigue life of elements subjected to block loading
Faculty of Mechanical Engineering, Opole University of Technology, 45-407 Opole, Mikołajczyka 5, Poland
* Corresponding author: firstname.lastname@example.org
This paper contains a proposition of a new method of determining the fatigue life of elements subjected to non-stationary loads. The model was based on the determination of the time-variable equivalent weighted amplitude. This amplitude is derived on a continuous basis as the arithmetic mean of nth root of the amplitudes that occur up to a given time. The analysis of the proposed model was carried out on the basis of selected literature insights based on specimens made of P91 and P92 steels. The experimental tests were performed under block loading with a zero mean value in the conditions of tension-compression with a small number of cycles.
© The Authors, published by EDP Sciences, 2021
This is an Open Access article distributed under the terms of the Creative Commons Attribution License 4.0, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
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