Modeling of the process of corrosion cracking of underground pipelines
https://doi.org/10.22405/2226-8383-2021-22-5-374-383
Abstract
The article presents the results of the development of a methodology for predicting the process of corrosion cracking of underground pipelines using the COMSOL Multiphysics 5.6:
Corrosion Module software product. Using the developed technique, it was found that at small values of longitudinal deformation (1.75 and 2.75 mm), a uniform distribution of stresses, corrosion potential, density of anode and cathode current is observed along the entire length of the crack. With an increase in the degree of deformation of the order of 3.75 and 4 mm, the distribution of stresses, corrosion potential, density of the anode and cathode current is more uneven: the maximum values of these values are reached at the top of the corrosion crack, and their more uniform distribution is characteristic along its edges. It is shown that the effect of local elastic deformation on the corrosion crack does not contribute to the strengthening of the mechanical-electrochemical interaction, which contributes to an increase in corrosion activity.
About the Authors
Sergey Nikolaevich Kutepov
Tula State Lev Tolsoy Pedagogical University
Russian Federation
Russian Federation
candidate of pedagogical sciences, associate professor
Alexander Nikolaevich Sergeev
Tula State Lev Tolsoy Pedagogical University
Russian Federation
Russian Federation
doctor of pedagogical sciences, professor
Alexander Evgenievich Gvozdev
Tula State Lev Tolsoy Pedagogical University
Russian Federation
Russian Federation
doctor of technical sciences, professor
Alexander Nikolaevich Chukanov
Tula State Lev Tolsoy Pedagogical University
Russian Federation
Russian Federation
doctor of technical sciences, associate professor
Valery Alekseevich Tereshin
Tula State Lev Tolstoy Pedagogical University
Russian Federation
Russian Federation
candidate of physical and mathematical sciences, associate
professor
Olga Vladimirovna Kuzovleva
Russian State University of Justice
Russian Federation
Russian Federation
candidate of technical sciences, associate professor
Evgeny Vladimirovich Tsoi
Tula State Lev Tolsoy Pedagogical University
Russian Federation
Russian Federation
postgraduate student
Evgeny Stanislavovich Krupitsyn
Moscow Pedagogical State University
Russian Federation
Russian Federation
candidate of physical and mathematical sciences
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Review
For citations:
Kutepov S.N., Sergeev A.N., Gvozdev A.E., Chukanov A.N., Tereshin V.A., Kuzovleva O.V., Tsoi E.V., Krupitsyn E.S. Modeling of the process of corrosion cracking of underground pipelines. Chebyshevskii Sbornik. 2021;22(5):374-383. (In Russ.) https://doi.org/10.22405/2226-8383-2021-22-5-374-383
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