Methodology to derive analytical solutions for the buckling of pipelines with inconstant corrosion subjected to external hydrostatic pressure is presented. The corroded pipeline is modeled as a non-uniform, infinitely long cylindrical shell with two regions: Region 1 of nominal thickness and Region 2 of reduced, inconstant thickness. Eigen-functions to determine the buckling pressure for the corroded pipeline are derived using asymptotic expansion. Symmetric and anti-symmetric buckling modes are found to occur for pipelines when the corrosion is symmetric about its centerline. In particular, solutions of the buckling mode and the eigenvalues for buckling pressure of the corroded pipeline are obtained when Region 2 has a reduced and constant thickness and are found to converge to the validated solutions obtained from equilibrium analysis.
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ASME 2006 Pressure Vessels and Piping/ICPVT-11 Conference
July 23–27, 2006
Vancouver, BC, Canada
Conference Sponsors:
- Pressure Vessels and Piping Division
ISBN:
0-7918-4757-8
PROCEEDINGS PAPER
Buckling of Pipelines With Inconstant Corrosion Subjected to External Hydrostatic Pressure Available to Purchase
Jianghong Xue
Jianghong Xue
Jinan University, Guangzhou, Guangdong, China
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Jianghong Xue
Jinan University, Guangzhou, Guangdong, China
Paper No:
PVP2006-ICPVT-11-93129, pp. 691-699; 9 pages
Published Online:
July 23, 2008
Citation
Xue, J. "Buckling of Pipelines With Inconstant Corrosion Subjected to External Hydrostatic Pressure." Proceedings of the ASME 2006 Pressure Vessels and Piping/ICPVT-11 Conference. Volume 6: Materials and Fabrication. Vancouver, BC, Canada. July 23–27, 2006. pp. 691-699. ASME. https://doi.org/10.1115/PVP2006-ICPVT-11-93129
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