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Prikladnaya Mekhanika i Tekhnicheskaya Fizika, 2020, Volume 61, Issue 2, Pages 158–166
DOI: https://doi.org/10.15372/PMTF20200216 (Mi pmtf349) 		 
This article is cited in 1 scientific paper (total in 1 paper)

Calculation of the stress intensity factor for a semi-elliptical surface crack on a rotating compressor blade

H. S. Li, Y. B. Liu, X. He, H. D. Li

College of Power Engineering, Naval University of Engineering, Wuhan, 430033, China
Full-text PDF (519 kB) Citations (1)
DOI: https://doi.org/10.15372/PMTF20200216
Abstract: Propagation of a semi-elliptical crack on the suction surface of a rotating blade of a gas turbine compressor is modeled and analysed. The analytical solution for the stress intensity factor (SIF) at the deepest point of the crack shows that the SIF increases with an increase in the crack depth and rotation speed, whereas the SIF decreases with an increase in the semi-elliptical aspect ratio and crack-rotation axis distance. The SIF increase rate with increasing crack depth is found to depend on the aspect ratio. Comparisons of theoretical and numerical calculation results reveal a relative error within 4%. The SIF distribution along the semi-elliptical surface crack front at different depths, positions, and aspect ratios are obtained by a numerical method.
Keywords: rotating blade, semi-elliptical crack, stress intensity factor, weight function.
Received: 23.09.2019
Revised: 23.09.2019
Accepted: 25.11.2019
English version:
Journal of Applied Mechanics and Technical Physics, 2021, Volume 61, Issue 2, Pages 292–299
DOI: https://doi.org/10.1134/S0021894420020169
Bibliographic databases:
Document Type: Article
UDC: 539.3
Language: Russian
Citation: H. S. Li, Y. B. Liu, X. He, H. D. Li, “Calculation of the stress intensity factor for a semi-elliptical surface crack on a rotating compressor blade”, Prikl. Mekh. Tekh. Fiz., 61:2 (2020), 158–166; J. Appl. Mech. Tech. Phys., 61:2 (2021), 292–299
Citation in format AMSBIB
\Bibitem{LiLiuHe20}
\by H.~S.~Li, Y.~B.~Liu, X.~He, H.~D.~Li
\paper Calculation of the stress intensity factor for a semi-elliptical surface crack on a rotating compressor blade
\jour Prikl. Mekh. Tekh. Fiz.
\yr 2020
\vol 61
\issue 2
\pages 158--166
\mathnet{http://mi.mathnet.ru/pmtf349}
\crossref{https://doi.org/10.15372/PMTF20200216}
\elib{https://elibrary.ru/item.asp?id=42694457}
\transl
\jour J. Appl. Mech. Tech. Phys.
\yr 2021
\vol 61
\issue 2
\pages 292--299
\crossref{https://doi.org/10.1134/S0021894420020169}
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  • https://www.mathnet.ru/eng/pmtf/v61/i2/p158
    • This publication is cited in the following 1 articles:
    Citing articles in Google Scholar: Russian citations, English citations
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    		Prikladnaya Mekhanika i Tekhnicheskaya Fizika Prikladnaya Mekhanika i Tekhnicheskaya Fizika
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