Email this article 
Development of the criteria of analyzing the stress-strain state of gas turbine engine parts in the elastoplastic range
- Authors: Bukaty A.S.1, Bukaty S.A.2
-
Affiliations:
- Samara National Research University
- Rybinsk State Aviation Technical University named after P.A. Solovyev
- Issue: Vol 15, No 3 (2016)
- Pages: 46-52
- Section: MECHANICAL ENGINEERING AND POWER ENGINEERING
- URL: https://journals.ssau.ru/vestnik/article/view/3108
- DOI: https://doi.org/10.18287/2541-7533-2016-15-3-46-52
- ID: 3108
Cite item
Full Text
Abstract
A dimensionless complex criterion is proposed to be used for the analysis of the stress-strain state of gas turbine parts with the purpose of diagnosing their most vulnerable areas. The criterion includes the stress-strain stiffness criterion characterizing the stress-strain type and the energy criterion characterizing the stress level of the material in elastoplastic areas. The energy criterion includes the elastic and plastic components of energy. Application of the complex criterion for the diagnostics of the most vulnerable areas of gas turbine parts and for the optimization of the geometric parameters and shape with the aim of minimizing the stress level is discussed. The efficiency of the criterion is illustrated by the example of stress-strain state analysis of gas turbine disks and by the example of varying the parameters in the process of optimization of the compressor disk structure.
About the authors
A. S. Bukaty
Samara National Research University
Author for correspondence.
Email: bukaty@inbox.ru
Candidate of Science (Engineering), Assistant Professor
Department of Strength of Materials
S. A. Bukaty
Rybinsk State Aviation Technical University named after P.A. Solovyev
Email: bukaty_sa@mail.ru
Doctor of Science (Engineering), Professor
Department of Applied Mechanics
References
- Smirnov-Alyaev G.A. Mekhanicheskie osnovy plasticheskoy obrabotki metallov. Inzhenernye metody [Mechanical principles of plastic working of metals]. Leningrad: Mashinostroenie Publ., 1968. 272 p.
- Agogino A.M. Notch effects, stress state, and ductility. Journal of Engineering Materials and Technology, Transactions of the ASME. 1978. V. 100, Iss. 4. С. 348-355. doi: 10.1115/1.3443503
- Bukatyy A.S., Bukatyy S.A., Leshin D.P., Okrugin A.A. Sovershenstvovanie konstruktsii i tekhnologii izgotovleniya otvetstvennykh detaley GTD na osnove energeticheskogo metoda i issledovaniya zhestkosti napryazhennogo sostoyaniya. Sb. materialov IV mezhdunarodnoy nauchno-tekhnicheskoy konferentsii «Naukoemkie tekhnologii v mashinostroenii i aviadvigatelestroenii (TM-2012)». Part 1. Rybinsk: Rybinsk State Aviation Technical University Publ., 2012. P. 308-312. (In Russ.)
- Porter A.M., Bukatyi S.A., Leshin D.P. Research of the validity of forecasting low cycle durability of gas turbine engine parts based on Manson’s equation. Vestnik of the Samara State Aerospace University. 2014. No. 5 (47), part 4. P. 142-150. (In Russ.)
Supplementary files
