Release:
2022. Vol. 8. № 3 (31)About the authors:
Irina A. Donkova, Cand. Sci. (Tech.), Associate Professor, Department of Software, Institute of Mathematics and Computer Science, University of Tyumen, Tyumen, Russia; Associate Professor, Department of Applied Mechanics, Institute of Transport, Industrial University of Tyumen, Tyumen, Russia; i.a.donkova@utmn.ru, https://orcid.org/0000-0003-1151-4931Abstract:
The issues of modeling and calculation of a section of a main pipeline reconstructed by a composite coupling are considered. Such a section is a two-layer composite cylindrical structure. At the heart of the construction а model are provisions and the hypothesis of the classical theory of shells (variant of L. I. Balabukh — V. I. Novozhilov) and the theory of deformation of composite structures (A. R. Rzhanitsyn). The aim of the work is mathematical modeling and study of the tensely deformed state (TDS) in the field of installation of the coupling. The problem of calculating a section of a pipeline repaired in accordance with the composite-coupling technology (CCT), which is under the action of internal hydrostatic pressure, is considered. A mathematical model of deformation of a two-layer circular cylindrical shell is presented in the form of a system of differential equilibrium equations and boundary conditions. Shear tension in the interlayer seam are taken into account.Keywords:
References:
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