Modeling of stress-strain state of piping systems with erosion and corrosion wear
The problems of modeling the stress-deformed state of erosion or corrosion-worn rectilinear sections and the ball-shaped bends of pipeline systems are proposed to solve in a cylindrical coordinate system. For this purpose, formulas of Christophell type II, non-zero components of the strain tensor an...
| Main Authors: | , , |
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| Format: | Article |
| Language: | English |
| Published: |
Vasyl Stefanyk Precarpathian National University
2020-03-01
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| Series: | Фізика і хімія твердого тіла |
| Subjects: | |
| Online Access: | https://journals.pnu.edu.ua/index.php/pcss/article/view/2969 |
| _version_ | 1818319067090518016 |
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| author | Ya. V. Doroshenko A. P. Oliinyk O. M. Karpash |
| author_facet | Ya. V. Doroshenko A. P. Oliinyk O. M. Karpash |
| author_sort | Ya. V. Doroshenko |
| collection | DOAJ |
| description | The problems of modeling the stress-deformed state of erosion or corrosion-worn rectilinear sections and the ball-shaped bends of pipeline systems are proposed to solve in a cylindrical coordinate system. For this purpose, formulas of Christophell type II, non-zero components of the strain tensor and a system of equilibrium equations in the framework of linear torsional theory are given. The system of equilibrium equations is reduced to one equation, which is the basic equation of the Lame’s problem. Formulas for the calculation of ring stresses that occur in the wall of erosion or corrosion worn rectilinear sections, and the removal of pipelines from the action of internal pressure are derived. The influence of the change in the wall thickness of the pipeline bends in the place of their erosion or corrosion wear on the amount of ring stresses is determined. |
| first_indexed | 2024-12-13T10:03:13Z |
| format | Article |
| id | doaj.art-3b96273b71bf4d60a377a6c73958822b |
| institution | Directory Open Access Journal |
| issn | 1729-4428 2309-8589 |
| language | English |
| last_indexed | 2024-12-13T10:03:13Z |
| publishDate | 2020-03-01 |
| publisher | Vasyl Stefanyk Precarpathian National University |
| record_format | Article |
| series | Фізика і хімія твердого тіла |
| spelling | doaj.art-3b96273b71bf4d60a377a6c73958822b2022-12-21T23:51:36ZengVasyl Stefanyk Precarpathian National UniversityФізика і хімія твердого тіла1729-44282309-85892020-03-0121115115610.15330/pcss.21.1.151-1562969Modeling of stress-strain state of piping systems with erosion and corrosion wearYa. V. Doroshenko0A. P. Oliinyk1O. M. Karpash2Ivano-Frankivsk National Technical University of Oil and GasIvano-Frankivsk National Technical University of Oil and GasIvano-Frankivsk National Technical University of Oil and GasThe problems of modeling the stress-deformed state of erosion or corrosion-worn rectilinear sections and the ball-shaped bends of pipeline systems are proposed to solve in a cylindrical coordinate system. For this purpose, formulas of Christophell type II, non-zero components of the strain tensor and a system of equilibrium equations in the framework of linear torsional theory are given. The system of equilibrium equations is reduced to one equation, which is the basic equation of the Lame’s problem. Formulas for the calculation of ring stresses that occur in the wall of erosion or corrosion worn rectilinear sections, and the removal of pipelines from the action of internal pressure are derived. The influence of the change in the wall thickness of the pipeline bends in the place of their erosion or corrosion wear on the amount of ring stresses is determined.https://journals.pnu.edu.ua/index.php/pcss/article/view/2969ring stresseserosioncorrosionbendinternal pressurecylindrical coordinate system |
| spellingShingle | Ya. V. Doroshenko A. P. Oliinyk O. M. Karpash Modeling of stress-strain state of piping systems with erosion and corrosion wear Фізика і хімія твердого тіла ring stresses erosion corrosion bend internal pressure cylindrical coordinate system |
| title | Modeling of stress-strain state of piping systems with erosion and corrosion wear |
| title_full | Modeling of stress-strain state of piping systems with erosion and corrosion wear |
| title_fullStr | Modeling of stress-strain state of piping systems with erosion and corrosion wear |
| title_full_unstemmed | Modeling of stress-strain state of piping systems with erosion and corrosion wear |
| title_short | Modeling of stress-strain state of piping systems with erosion and corrosion wear |
| title_sort | modeling of stress strain state of piping systems with erosion and corrosion wear |
| topic | ring stresses erosion corrosion bend internal pressure cylindrical coordinate system |
| url | https://journals.pnu.edu.ua/index.php/pcss/article/view/2969 |
| work_keys_str_mv | AT yavdoroshenko modelingofstressstrainstateofpipingsystemswitherosionandcorrosionwear AT apoliinyk modelingofstressstrainstateofpipingsystemswitherosionandcorrosionwear AT omkarpash modelingofstressstrainstateofpipingsystemswitherosionandcorrosionwear |