Development of short fatigue cracks in aluminum alloy 2524-T3 specimens
- Authors: Botvina L.R.1, Nesterenko G.I.2, Soldatenkov A.P.1, Demina Y.A.1, Sviridov A.A.2
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Affiliations:
- Baikov Institute of Metallurgy and Materials Science
- Central Aerohydrodynamic Institute
- Issue: Vol 2017, No 4 (2017)
- Pages: 322-329
- Section: Diagnostics and Mechanical Test Techniques
- URL: https://journals.rcsi.science/0036-0295/article/view/171450
- DOI: https://doi.org/10.1134/S0036029517040024
- ID: 171450
Cite item
Abstract
The development of short fatigue cracks in a 2524-T3 alloy is studied under cyclic tension conditions. Flat specimens with a stress concentrator in the form of a central hole are analyzed. The replica technique is used to determine the microcrack parameters and to estimate the cyclic damage characteristics of the alloy in the stress concentrator zone. The experimental results are compared to the fatigue lives estimated by a calculation-experimental method using the NASGRO software package. The experimental fatigue life at the stage of short crack initiation is found to be significantly shorter than the calculated fatigue life.
About the authors
L. R. Botvina
Baikov Institute of Metallurgy and Materials Science
Author for correspondence.
Email: botvina@imet.ac.ru
Russian Federation, Leninskii pr. 49, Moscow, 119334
G. I. Nesterenko
Central Aerohydrodynamic Institute
Email: botvina@imet.ac.ru
Russian Federation, ul. Zhukovskogo 1, Zhukovskii, Moscow oblast, 140180
A. P. Soldatenkov
Baikov Institute of Metallurgy and Materials Science
Email: botvina@imet.ac.ru
Russian Federation, Leninskii pr. 49, Moscow, 119334
Yu. A. Demina
Baikov Institute of Metallurgy and Materials Science
Email: botvina@imet.ac.ru
Russian Federation, Leninskii pr. 49, Moscow, 119334
A. A. Sviridov
Central Aerohydrodynamic Institute
Email: botvina@imet.ac.ru
Russian Federation, ul. Zhukovskogo 1, Zhukovskii, Moscow oblast, 140180