Akademik Məlumat İdarəetmə Sistemi
SOCAR Proceedings, pp.12-17, 2023 (ESCI, Scopus)
The stress-strain state of a polymer reinforced pipeline of small diameter, which is part of a capillary system for supplying chemical reagents to oil wells, is studied in the work. The pipeline is loaded with internal pressure and secured with one end in a rigid seal. To solve the equations of the mathematical model, the finite element method is applied in the COMSOL Multiphysics numerical modeling environment. On the basis of numerical experiments, equivalent stresses in the polymer and steel wire of the braid are determined. The region of maximum equivalent stresses, which is located at a distance of 15 mm from the seal, has been identified. The limit values of the internal pressure of 23 MPa have been determined, the excess of which leads to an increase in plastic deformation in the polymer and depressurization of the pipeline.