 | | Mechanics of Solids
A Journal of Russian Academy of Sciences | | Founded
in January 1966
Issued 6 times a year
Print ISSN 0025-6544
Online ISSN 1934-7936 |
Archive of Issues
| Total articles in the database: | | 12854 |
| In Russian (Èçâ. ÐÀÍ. ÌÒÒ): | | 8044
|
| In English (Mech. Solids): | | 4810 |
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| N.G. Burago, I.S. Nikitin, and P.A. Yushkovskii, "Lifetime of Disks of Variable Thickness with Anisotropy of Fatigue Properties Taken into Account," Mech. Solids. 50 (5), 546-558 (2015) |
| Year |
2015 |
Volume |
50 |
Number |
5 |
Pages |
546-558 |
| DOI |
10.3103/S0025654415050064 |
| Title |
Lifetime of Disks of Variable Thickness with Anisotropy of Fatigue Properties Taken into Account |
| Author(s) |
N.G. Burago (A. Ishlinsky Institute for Problems in Mechanics, Russian Academy of Sciences, pr. Vernadskogo 101, str. 1, Moscow, 119526 Russia; Bauman Moscow State Technical University, ul. 2-ya Baumanskaya 5, Moscow, 105005 Russia, burago@ipmnet.ru)
I.S. Nikitin (Institute of Design Automation, Russian Academy of Sciences, ul. 2-ya Bratskaya 19/18, Moscow, 123056 Russia; Bauman Moscow State Technical University, ul. 2-ya Baumanskaya 5, Moscow, 105005 Russia, i_nikitin@list.ru)
P.A. Yushkovskii (MATI - K. E. Tsiolkovsky Russian State Technological University, ul. Orshanskaya 3, Moscow, 121552 Russia) |
| Abstract |
A generalization of well-known criteria for multiaxial fatigue fracture to the case of titanium alloys with anisotropic fatigue properties is proposed. The problem of determining the stress-strain state and estimating the fatigue life of a rotating disk of variable thickness under the action of centrifugal loads in the disk and blades is solved. The proposed criteria for multiaxial fatigue fracture are used to obtain spatial lifetime distributions over the disk in the isotropic and anisotropic cases. It was shown that the fatigue life of the titanium disk with the anisotropy of the fatigue properties taken into account can decrease to the critical values of $N$, $10^4$ cycles near the outer rim of the disk in the region of contact with blades, which is inadmissible from the standpoint of safe operation. |
| Keywords |
fatigue fracture, anisotropy, fatigue life, compressor disk, centrifugal load, aerodynamic pressure |
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|
| Received |
27 February 2014 |
| Link to Fulltext |
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