 | | 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: | | 13554 |
| In Russian (Èçâ. ÐÀÍ. ÌÒÒ): | | 8194
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| In English (Mech. Solids): | | 5360 |
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| << Previous article | Volume 60, Issue 7 / 2025 | Next article >> |
| K.S. Strelkov and E.V. Murashkin, "Sealability of Premium Threaded Connections under Creep," Mech. Solids. 60 (7), 6583-6590 (2025) |
| Year |
2025 |
Volume |
60 |
Number |
7 |
Pages |
6583-6590 |
| DOI |
10.1134/S0025654425607025 |
| Title |
Sealability of Premium Threaded Connections under Creep |
| Author(s) |
K.S. Strelkov (Ishlinsky Institute for Problems in Mechanics of the Russian Academy of Sciences, Moscow, 119526 Russia, ks.strelkov@yandex.ru)
E.V. Murashkin (Ishlinsky Institute for Problems in Mechanics of the Russian Academy of Sciences, Moscow, 119526 Russia; Institute of Mechanics, Lomonosov Moscow State University, Moscow, 119192 Russia, evmurashkin@gmail.com) |
| Abstract |
The present study is devoted to a comprehensive analysis of the design of premium threaded
connection in order to determine the creep impact on sealing properties under extreme operating conditions with high temperature (SAGD, CSS, etc.). The design of threaded connection of own development OMK VEGA was chosen as the object of research. The creep effect was simulated by using the
Maxwell-Wiechert viscoelastic model that provides to contact pressure relaxation in the metal-to-metal seal. Particular attention was paid to the application of a methodology for assessing sealability
based on a set of specific criteria. A comparative analysis of various types of loads with time exposure
was carried out at the initial stage of the study. The loading was imposed according to the fluid pressure
penetration method. This made it possible to identify the most critical loading modes leading to the
maximum relaxation of contact pressure in the sealing zone during a specified time interval. A comparative analysis was also carried out for sequential loading for two different models. The first one is a
viscoelastic model with time exposure and the second one is elastic. The obtained results allow us to
predict changes in the sealing properties of premium threaded connections under conditions of longterm exposure to operational loads and elevated temperatures. |
| Keywords |
contact pressure relaxation, creep, premium threaded connection, metal-to-metal seal, viscoelasticity |
| Received |
12 October 2025 | Revised |
25 October 2025 | Accepted |
11 November 2025 |
| Link to Fulltext |
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