Исследование механизмов развития трещин малоцикловой усталости в дисках авиадвигателей в условиях эксплуатации и оценка остаточной долговечности дисков

N. V. Tumanov; Туманов Н. В.; S. A. Cherkasova; Черкасова С. А.; M. A. Lavrentyeva; Лаврентьева М. А.; N. A. Vorobyeva; Воробьёва Н. А.

doi:10.18287/2541-7533-2011-0-3-2(27)-175-184

Study of mechanisms of low cycle fatigue crack propagation in aero engine disks under operating conditions and disk residual life estimation

Authors: Tumanov N.V.¹, Cherkasova S.A.¹, Lavrentyeva M.A.¹, Vorobyeva N.A.¹
Affiliations:
1. Central Institute of Aviation Motors
Issue: Vol 10, No 3-2 (2011): Special Issue
Pages: 175-184
Section: AIRCRAFT AND SPACE ROCKET ENGINEERING
URL: https://journals.ssau.ru/vestnik/article/view/6804
DOI: https://doi.org/10.18287/2541-7533-2011-0-3-2(27)-175-184
ID: 6804

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Abstract

Using microfractographic observations the mechanisms of low cycle fatigue crack kinetics in aero engine disks under operating conditions have been established. On this basis the techniques for disc residual life estimation have been developed. The techniques have been verified with the data of crack growth microfractographic reconstitution and crack kinetics direct observation on a disk surface.