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Buckling Analysis of Groove Corroded Pipe Due to Axial Pressure with Finite Element Method
https://orcid.org/http://orcid.org/0000-0002-0151-7541
https://orcid.org/http://orcid.org/0000-0003-2260-2638
The loss of metal in pipes due to corrosion usually results in localized pits with various depths and irregular shapes on their external and internal surfaces. In this paper, the effects of external corrosion defects on the axial buckling pressure of pipes are studied. Nonlinear numerical analysis based on the Finite elements method has been applied for solving this problem. Buckling due to axial pressure is studied for corroded pipes and compared with intact pipe due to the same load and theory results. This analysis is evaluated for different ratios of corrosion geometric parameters consisting of corrosion depth ratio, corrosion length ratio, and corrosion angle. Pipe length to diameter ratios 20 and 25 have been considered to reach optimum results and better response. In addition, the critical loads have been investigated. The obtained results demonstrate that corrosion depth’s effect on the buckling strength reduction is more than the corrosion length effect. Also, the influence of the corrosion angle is less than the effects of corrosion depth and corrosion length.
Buckling Analysis of Groove Corroded Pipe Due to Axial Pressure with Finite Element Method
https://orcid.org/http://orcid.org/0000-0002-0151-7541
https://orcid.org/http://orcid.org/0000-0003-2260-2638
The loss of metal in pipes due to corrosion usually results in localized pits with various depths and irregular shapes on their external and internal surfaces. In this paper, the effects of external corrosion defects on the axial buckling pressure of pipes are studied. Nonlinear numerical analysis based on the Finite elements method has been applied for solving this problem. Buckling due to axial pressure is studied for corroded pipes and compared with intact pipe due to the same load and theory results. This analysis is evaluated for different ratios of corrosion geometric parameters consisting of corrosion depth ratio, corrosion length ratio, and corrosion angle. Pipe length to diameter ratios 20 and 25 have been considered to reach optimum results and better response. In addition, the critical loads have been investigated. The obtained results demonstrate that corrosion depth’s effect on the buckling strength reduction is more than the corrosion length effect. Also, the influence of the corrosion angle is less than the effects of corrosion depth and corrosion length.
Buckling Analysis of Groove Corroded Pipe Due to Axial Pressure with Finite Element Method
https://orcid.org/http://orcid.org/0000-0002-0151-7541
https://orcid.org/http://orcid.org/0000-0003-2260-2638
The loss of metal in pipes due to corrosion usually results in localized pits with various depths and irregular shapes on their external and internal surfaces. In this paper, the effects of external corrosion defects on the axial buckling pressure of pipes are studied. Nonlinear numerical analysis based on the Finite elements method has been applied for solving this problem. Buckling due to axial pressure is studied for corroded pipes and compared with intact pipe due to the same load and theory results. This analysis is evaluated for different ratios of corrosion geometric parameters consisting of corrosion depth ratio, corrosion length ratio, and corrosion angle. Pipe length to diameter ratios 20 and 25 have been considered to reach optimum results and better response. In addition, the critical loads have been investigated. The obtained results demonstrate that corrosion depth’s effect on the buckling strength reduction is more than the corrosion length effect. Also, the influence of the corrosion angle is less than the effects of corrosion depth and corrosion length.
Buckling Analysis of Groove Corroded Pipe Due to Axial Pressure with Finite Element Method
Int J Steel Struct
Rajabiani, Ehsan (author) / Gharib, Mohammad Reza (author) / Koochi, Ali (author)
International Journal of Steel Structures ; 21 ; 1723-1740
2021-10-01
18 pages
Article (Journal)
Electronic Resource
English
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