The repair of corroded pipelines with fiber reinforced composite materials has gained wide acceptance in the oil and gas transportation industry over recent times. It has been integrated into the ASME B31.4 and B31.8 pipeline codes, along with CSA Z662. A considerable amount of experimental research has been conducted on fiber reinforced composite repaired pipelines with external corrosion defects subject to hydrostatic internal pressure. However, the effects of the internal pressure, thermal loads and geotechnical loads create combined loading conditions on the buried pipeline that need to be considered. This paper aims to address the effectiveness of fiber reinforced composite repair systems on externally corroded pipelines under combined internal pressure and bending. For that, finite element analysis is conducted to examine the effects of various loading conditions on the effectiveness of the fiber reinforced composite repair system. Typical conventional commercially available fiber reinforced composite wrap systems are used for this purpose. Three loading conditions are considered on both conventionally repaired and unrepaired pipes subject to internal pressure, pure bending and combined internal pressure and bending. Results show that up to the stage of yielding of the steel in the defect region, the steel elastic stiffness counteracts most of the stress that is induced by the in-service loading conditions. Once the pipe is loaded beyond the yielding point of its material at the defect region, the composite starts to take effect, thus carrying a significant portion of the applied stresses. Essentially, by comparing the burst pressures of repaired pipes against unrepaired pipes, it is shown that the fiber reinforced composite system restores the minimum specified strength of the pipe to its value before the defects were applied. The results presented in the paper are believed to reveal the response of the wraps subject to realistic combined loading conditions that to our knowledge are nonexistent in open literature.
Skip Nav Destination
ASME 2009 28th International Conference on Ocean, Offshore and Arctic Engineering
May 31–June 5, 2009
Honolulu, Hawaii, USA
Conference Sponsors:
- Ocean, Offshore and Arctic Engineering Division
ISBN:
978-0-7918-4343-7
PROCEEDINGS PAPER
An Investigation Into the Behaviour of Composite Repaired Pipelines Under Combined Internal Pressure and Bending Available to Purchase
Ahmed Shouman,
Ahmed Shouman
Dalhousie University, Halifax, NS Canada
Search for other works by this author on:
Farid Taheri
Farid Taheri
Dalhousie University, Halifax, NS, Canada
Search for other works by this author on:
Ahmed Shouman
Dalhousie University, Halifax, NS Canada
Farid Taheri
Dalhousie University, Halifax, NS, Canada
Paper No:
OMAE2009-79177, pp. 111-118; 8 pages
Published Online:
February 16, 2010
Citation
Shouman, A, & Taheri, F. "An Investigation Into the Behaviour of Composite Repaired Pipelines Under Combined Internal Pressure and Bending." Proceedings of the ASME 2009 28th International Conference on Ocean, Offshore and Arctic Engineering. Volume 3: Pipeline and Riser Technology. Honolulu, Hawaii, USA. May 31–June 5, 2009. pp. 111-118. ASME. https://doi.org/10.1115/OMAE2009-79177
Download citation file:
27
Views
Related Proceedings Papers
Related Articles
About the Influence of the Corrosion Defect Geometry on Repaired Pipes Stress Distribution
J. Pressure Vessel Technol (February,2021)
Bending Capacity Analyses of Corroded Pipeline
J. Offshore Mech. Arct. Eng (May,2012)
Mechanical Properties Characterization and Finite Element Analysis of Epoxy Grouts in Repairing Damaged Pipeline
J. Pressure Vessel Technol (December,2018)
Related Chapters
Transportation Pipelines, Including ASME B31.4, B31.8, B31.8S, B31G, and B31Q Codes
Online Companion Guide to the ASME Boiler & Pressure Vessel Codes
Subsection NCA—General Requirements for Division 1 and Division 2
Companion Guide to the ASME Boiler & Pressure Vessel Code, Volume 1, Second Edition
Subsection NCA—General Requirements for Division 1 and Division 2
Companion Guide to the ASME Boiler and Pressure Vessel Code, Volume 1, Third Edition