Girth welds in pipelines subject to longitudinal plastic tensile strains are critical regions of the pipeline. As girth welds might contain flaws of some form or other, it is of paramount interest to have a thorough understanding of the deformation characteristics of girth welds in the post-yield loading range. The response of a defective weld to plastic strains depends on many variables. While toughness is an important variable, large-scale tests demonstrate that the plastic straining capacity is directly affected by the mechanical properties of the materials surrounding the defect. The purpose of this paper is to describe the effect of the interrelation between the pipe and weld metal post-yield characteristics on the straining capacity of girth welds containing a defect.
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2004 International Pipeline Conference
October 4–8, 2004
Calgary, Alberta, Canada
Conference Sponsors:
- International Petroleum Technology Institute
ISBN:
0-7918-4176-6
PROCEEDINGS PAPER
Effect of Pipe and Weld Metal Post-Yield Characteristics on Plastic Straining Capacity of Axially Loaded Pipelines
Rudi Denys,
Rudi Denys
Labo Soete - Universiteit Gent, Gent, Belgium
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Wim De Waele,
Wim De Waele
Labo Soete - Universiteit Gent, Gent, Belgium
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Anton Lefevre
Anton Lefevre
Labo Soete - Universiteit Gent, Gent, Belgium
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Rudi Denys
Labo Soete - Universiteit Gent, Gent, Belgium
Wim De Waele
Labo Soete - Universiteit Gent, Gent, Belgium
Anton Lefevre
Labo Soete - Universiteit Gent, Gent, Belgium
Paper No:
IPC2004-0768, pp. 1573-1581; 9 pages
Published Online:
December 4, 2008
Citation
Denys, R, De Waele, W, & Lefevre, A. "Effect of Pipe and Weld Metal Post-Yield Characteristics on Plastic Straining Capacity of Axially Loaded Pipelines." Proceedings of the 2004 International Pipeline Conference. 2004 International Pipeline Conference, Volumes 1, 2, and 3. Calgary, Alberta, Canada. October 4–8, 2004. pp. 1573-1581. ASME. https://doi.org/10.1115/IPC2004-0768
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