An Analytical Approach for Thermally Induced Axial Deformation in Rehabilitated Pipelines
Paper
Dixon, Patrick G., Salah, Ahmad, Ahmadi, Hamid, Ulrich, Morgan E., Hubler, Mija H., Dashti, Shideh, O’Rourke, Thomas D., Manalo, A. and Wham, Brad P.. 2023. "An Analytical Approach for Thermally Induced Axial Deformation in Rehabilitated Pipelines." Pipelines 2023: Construction and Rehabilitation. San Antonio, TX, United States. 12 - 16 Aug 2023 United States. https://doi.org/10.1061/9780784485026.028
Paper/Presentation Title | An Analytical Approach for Thermally Induced Axial Deformation in Rehabilitated Pipelines |
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Presentation Type | Paper |
Authors | Dixon, Patrick G., Salah, Ahmad, Ahmadi, Hamid, Ulrich, Morgan E., Hubler, Mija H., Dashti, Shideh, O’Rourke, Thomas D., Manalo, A. and Wham, Brad P. |
Journal or Proceedings Title | Proceedings of Sessions of the Pipelines 2023 Conference (Pipelines 2023) |
Journal Citation | pp. 260-269 |
Number of Pages | 10 |
Year | 2023 |
Place of Publication | United States |
ISBN | 9780784485026 |
Digital Object Identifier (DOI) | https://doi.org/10.1061/9780784485026.028 |
Web Address (URL) of Paper | https://ascelibrary.org/doi/abs/10.1061/9780784485026.028 |
Web Address (URL) of Conference Proceedings | https://ascelibrary.org/doi/book/10.1061/pipelines2023 |
Conference/Event | Pipelines 2023: Construction and Rehabilitation |
Event Details | Pipelines 2023: Construction and Rehabilitation Delivery In person Event Date 12 to end of 16 Aug 2023 Event Location San Antonio, TX, United States. |
Abstract | Legacy pipelines experience damage associated with temperature fluctuations. Axial deformation and stress can be induced by pipe thermomechanical behavior. In legacy cast iron pipelines, movement induced by temperature fluctuations may be concentrated at weak joints or existing discontinuities. Successful installation of a rehabilitating internal pipe will affect thermal deformation of the host-repair system and must be designed to accommodate upper bound conditions. Here, an analytical approach is used to estimate potential levels of axial deformation. The assessment focuses on movement at a discontinuity, representative of a weak joint or circumferential crack in the host pipe, which is spanned by a rehabilitating internal pipe. Closed-form equations for induced force and crack opening displacement are derived. The analytical solution shows that crack opening displacement increases as initial crack width increases and the axial rigidity of the repair pipe decreases. The solutions at limiting cases compare favorably with previous work. These solutions provide a useful estimation of potential in-field displacements. |
ANZSRC Field of Research 2020 | 400503. Complex civil systems |
400510. Structural engineering | |
400508. Infrastructure engineering and asset management | |
Public Notes | Files associated with this item cannot be displayed due to copyright restrictions. |
Byline Affiliations | University of Colorado Boulder, United States |
Centre for Future Materials | |
Cornell University, United States |
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