Pipeline industry and various research organizations have been undertaking studies to understand how the pressure strength of line pipes reduces as the defects in the line pipes grow. Defect in pipe lines can be in the form of corrosion, dent, wrinkle, gouge, crack, and combinations of these. A large number of studies have been completed in developing methods for determining the pressure strength of line pipes with dent and gouge defects and also in the form of combined dent-gouge defect. Some of these studies were undertaken with the intention of determining the pressure strength of line pipes when a combined dent and crack (dent-crack) defect has formed. However, in these studies no cracks were simulated in the test pipe specimens; instead, a gouge (machined cut or notch) was produced and considered as a crack. Therefore, it is not realistic to call this defect a dent-crack defect; rather, it should be called dent-gouge defect. Hence, the current project is being undertaken at the University of Windsor to study how the dent-crack defect influences the pressure strength of line pipes. In this study, a crack in true sense was introduced in the pipe wall. Two different techniques were used to simulate the crack in the pipe wall. This paper discusses the procedures used in this study to simulate crack and dent. In addition, the test procedure and test data obtained from denting and pressure tests are discussed.
Skip Nav Destination
2010 8th International Pipeline Conference
September 27–October 1, 2010
Calgary, Alberta, Canada
Conference Sponsors:
- International Petroleum Technology Institute and the Pipeline Division
ISBN:
978-0-7918-4420-5
PROCEEDINGS PAPER
Strength of Line Pipe With Dent and Crack Defect
Abu Rafi,
Abu Rafi
University of Windsor, Windsor, ON, Canada
Search for other works by this author on:
Jorge Silva,
Jorge Silva
University of Windsor, Windsor, ON, Canada
Search for other works by this author on:
Sara Kenno,
Sara Kenno
University of Windsor, Windsor, ON, Canada
Search for other works by this author on:
Sreekanta Das,
Sreekanta Das
University of Windsor, Windsor, ON, Canada
Search for other works by this author on:
Richard Kania,
Richard Kania
TransCanada Pipelines, Calgary, AB, Canada
Search for other works by this author on:
Rick Yahua Wang
Rick Yahua Wang
TransCanada Pipelines, Calgary, AB, Canada
Search for other works by this author on:
Abu Rafi
University of Windsor, Windsor, ON, Canada
Jorge Silva
University of Windsor, Windsor, ON, Canada
Sara Kenno
University of Windsor, Windsor, ON, Canada
Sreekanta Das
University of Windsor, Windsor, ON, Canada
Richard Kania
TransCanada Pipelines, Calgary, AB, Canada
Rick Yahua Wang
TransCanada Pipelines, Calgary, AB, Canada
Paper No:
IPC2010-31095, pp. 151-157; 7 pages
Published Online:
April 4, 2011
Citation
Rafi, A, Silva, J, Kenno, S, Das, S, Kania, R, & Wang, RY. "Strength of Line Pipe With Dent and Crack Defect." Proceedings of the 2010 8th International Pipeline Conference. 2010 8th International Pipeline Conference, Volume 1. Calgary, Alberta, Canada. September 27–October 1, 2010. pp. 151-157. ASME. https://doi.org/10.1115/IPC2010-31095
Download citation file:
34
Views
Related Proceedings Papers
Related Articles
Bending Capacity Analyses of Corroded Pipeline
J. Offshore Mech. Arct. Eng (May,2012)
Failure Pressure in Corroded Pipelines Based on Equivalent Solutions for Undamaged Pipe
J. Pressure Vessel Technol (October,2010)
About the Influence of the Corrosion Defect Geometry on Repaired Pipes Stress Distribution
J. Pressure Vessel Technol (February,2021)
Related Chapters
Transportation Pipelines, Including ASME B31.4, B31.8, B31.8S, B31G, and B31Q Codes
Online Companion Guide to the ASME Boiler and Pressure Vessel Codes
LARGE STANDOFF MAGNETOMETRY TECHNOLOGY ADVANCES TO ASSESS PIPELINE INTEGRITY UNDER GEOHAZARD CONDITIONS AND APPROACHES TO UTILISATION OF IT
Pipeline Integrity Management Under Geohazard Conditions (PIMG)
Natural Gas Transmission
Pipeline Design & Construction: A Practical Approach, Third Edition