Detail publikace
Prediction of the fatigue life of notched specimens: The influence of the surface quality produced by machining
KOZÁKOVÁ, K. KLUSÁK, J.
Anglický název
Prediction of the fatigue life of notched specimens: The influence of the surface quality produced by machining
Typ
článek ve sborníku ve WoS nebo Scopus
Jazyk
en
Originální abstrakt
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.
Anglický abstrakt
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.
Klíčová slova anglicky
notches; fatigue; lifetime predictions; length parameter; high cycle fatigue; gigacycle fatigue
Vydáno
13.01.2023
Nakladatel
Elsevier
ISSN
2452-3216
Kniha
Materials Structure & Micromechanics of Fracture
Ročník
43
Číslo
1
Strany od–do
178–183
Počet stran
6
BIBTEX
@inproceedings{BUT182123,
author="Kamila {Kozáková} and Jan {Klusák},
title="Prediction of the fatigue life of notched specimens: The influence of the surface quality produced by machining",
booktitle="Materials Structure & Micromechanics of Fracture",
year="2023",
volume="43",
number="1",
month="January",
pages="178--183",
publisher="Elsevier",
issn="2452-3216"
}