Prediction of the fatigue life of notched specimens: The influence of the surface quality produced by machining

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216305%3A26210%2F23%3APU147138" target="_blank" >RIV/00216305:26210/23:PU147138 - isvavai.cz</a>
Result on the web
<a href="https://www.sciencedirect.com/science/article/pii/S2452321622008186" target="_blank" >https://www.sciencedirect.com/science/article/pii/S2452321622008186</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1016/j.prostr.2022.12.255" target="_blank" >10.1016/j.prostr.2022.12.255</a>

Result language
angličtina
Original language name
Prediction of the fatigue life of notched specimens: The influence of the surface quality produced by machining
Original language description
The article introduces a method for fatigue lifetime predictions of notched specimens. The method uses fracture stresses of smooth and notched specimens with notch radius r = 0.2 mm. These two sets of experimental data are evaluated with the knowledge of axial stress distributions of the notched specimens using average stress over a length parameter l. This parameter l is considered to be a material characteristic (depending on the number of cycles to failure) and can be used for lifetime predictions of notched specimens with various notch radii. The predictions are compared to experimental data and analyzed. There is a strong influence of the process of machining of notches, which can lead to fatigue failure earlier than predicted. The data are evaluated in the area of high cycle fatigue and gigacycle fatigue.
Czech name
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Czech description
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Project
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Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year
2023
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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