Damage Accumulation under Variable Loading of Cyclically Hardening Material at the Stages of Formation and Development of Cracks
- Authors: Romanov A.N.1, Nesterenko G.I.2, Filimonova N.I.1
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Affiliations:
- Blagonravov Institute of Mechanical Engineering
- Zhukovskii Central Aerohydrodynamic Institute
- Issue: Vol 47, No 5 (2018)
- Pages: 414-419
- Section: Reliability, Strength, and Wear Resistance of Machines and Structures
- URL: https://journals.rcsi.science/1052-6188/article/view/193992
- DOI: https://doi.org/10.3103/S1052618818050102
- ID: 193992
Cite item
Abstract
The results of experimental studies of the kinetics of damage accumulation at the stages of formation and rates of development of cracks in cyclic loading of the cyclically hardening AD-33 aluminum alloy are presented, and an assessment is made of the levels accumulated in the process of loading of damage on the basis of the deformation and kinetic criteria. It is shown that the limiting state (final fracture) during cyclic loading of an aluminum alloy is described well when using deformation characteristics (cyclically reversible deformations and one-sided accumulated ones at the stage of formation, and reversible and one-sided accumulated displacement of crack edges at the stage of crack development) used in the deformation and kinetic criteria. It has been established that a cyclically hardening aluminum alloy at the stage of crack development under tension-compression conditions does not obey the first model of fracture mechanics.
About the authors
A. N. Romanov
Blagonravov Institute of Mechanical Engineering
Author for correspondence.
Email: alrom37@mail.ru
Russian Federation, Moscow
G. I. Nesterenko
Zhukovskii Central Aerohydrodynamic Institute
Email: alrom37@mail.ru
Russian Federation, Zhukovskii, Moscow oblast
N. I. Filimonova
Blagonravov Institute of Mechanical Engineering
Email: alrom37@mail.ru
Russian Federation, Moscow