Abstract
Based on the assumption of the initial deformed shape of the pipeline without initial stresses, the critical compression force is determined. The pipeline was under the influence of internal and external pressures, compressive forces. A fluid with a given density flowed through the pipeline. The axisymmetric expansion of the pipe and its longitudinal shortening change in the temperature of the pipe wall and formation of an ejection arch were considered. The static interaction of instabilities under the influence of the above factors was studied.
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ACKNOWLEDGMENTS
The author is grateful to Corresponding Member of the Russian Academy of Sciences M.A. Il’gamov for discussing the results.
Funding
The work was supported by the state budget according to the state assignment for 2019−2022 (no. 0246-2019-0088) and a grant from the Russian Foundation for Basic Research (no. 18-01-00150).
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Translated by N. Petrov
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Khakimov, A.G. Static Stability of a Pipeline. Tech. Phys. 65, 587–592 (2020). https://doi.org/10.1134/S106378422004012X
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DOI: https://doi.org/10.1134/S106378422004012X