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Determination of the Region of No Effect of the Notch on Fatigue Life of Aa2519 T62 Aluminium Alloy
 
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Bydgoszcz University of Science and Technology, ul. Profesora Sylwestra Kaliskiego 7, 85-796 Bydgoszcz, Poland
 
These authors had equal contribution to this work
 
 
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Maciej Kotyk   

Bydgoszcz University of Science and Technology, ul. Profesora Sylwestra Kaliskiego 7, 85-796 Bydgoszcz, Poland
 
 
Adv. Sci. Technol. Res. J. 2024; 18(5)
 
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ABSTRACT
The paper presents a fatigue test of AA2519 T62 aluminium alloy in high-cycles region for smooth and notched specimens with stress concentration factors 1.75 and 2.28 for radii r1 = 2 mm and r2 = 1 mm, respectively. A number of cycles with no notch effect was determined for each notched specimens. The estimated values were compared with the distribution estimated on the literature data. Based on this knowledge, an analytical-experimental method was proposed to determine S-N curves for notched elements for aluminium alloys. The verification of the method gives satisfactory results. Additionally, the FITNET method and the Lee & Taylor method were used for comparison. The proposed method got the best results. The FITNET method and Lee & Taylor method obtained overestimated fatigue life and it can be concluded that the analytical method presented methods are suitable for steel materials. The proposed method can be used by engineers.
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