Authors: P.V. Burkov, V.P. Burkov, S.N. Nikolaenko, V.Yu. Timofeev

Title of the article: Simulation of the stress-strain state of the main pipeline taking into account real internal defects

Year: 2021, Issue: 1, Pages: 80-86

Branch of knowledge: 25.00.22 Geotechnology (underground, open and construction)s

Index UDK: 622.691.4:053:533.6(252.6)

DOI: 10.26730/1999-4125-2021-1-80-86

Abstract: The article describes the study of the stress-strain state of the main oil pipeline prone to corrosion damage. The object of the study was a section of the main pipeline made of steel grade 17G2S with the following parameters of the simulated section: outer diameter – 1240 mm, pipe section length – 16.8 km, pipe wall thickness - 10 mm. Initial data for modeling pipeline defects were obtained by the method of in-line diagnostics. Modeling of the pipeline and calculation of the stress-strain state were carried out using the Autodesk Inventor finite element analysis software. The values of the maximum and minimum displacement and stress according to von Mises, as well as safety factors are obtained. The obtained algorithm and data model will make it possible to predict changes in the strength characteristics of pipelines with different parameters.

Key words: pipeline finite element method Autodesk Inventor numerical experiment stress-strain state equivalent stresses equivalent strains metal loss defect

Receiving date: 10.01.2021

Publication date: 29.04.2021

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