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Keywords: girth weld
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Proceedings Papers

Proc. ASME. IPC2020, Volume 1: Pipeline and Facilities Integrity, V001T03A021, September 28–30, 2020
Paper No: IPC2020-9506
... engineering assessment arc burn girth weld finite element modeling FEA stress analysis fatigue analysis Abstract Abstract Arc burns, also known as arc strikes, are caused by momentary interaction of an electric arc, e.g., welding electrode or welding ground clamp, and a pipe...
Proceedings Papers

Proc. ASME. IPC2020, Volume 3: Operations, Monitoring, and Maintenance; Materials and Joining, V003T05A022, September 28–30, 2020
Paper No: IPC2020-9658
...MATERIAL PROPERTIES AND FLAW CHARACTERISTICS OF VINTAGE GIRTH WELDS Dan Jia1 and Yong-Yi Wang1 Center for Reliable Energy Systems Dublin, OH, USA Steve Rapp Enbridge Houston, TX, USA ABSTRACT Vintage pipelines, which in the context of this paper refer to pipelines built before approximately 1970...
Proceedings Papers

Proc. ASME. IPC2010, 2010 8th International Pipeline Conference, Volume 4, 175-185, September 27–October 1, 2010
Paper No: IPC2010-31385
... developed from various current and past research programs. The trends exhibited by the various forms of specimens are examined. The implications of those trends in the strain-based design of pipelines are summarized at the end of the paper. KEYWORDS Pipeline, strain-based design, girth weld, toughness...
Proceedings Papers

Proc. ASME. IPC2010, 2010 8th International Pipeline Conference, Volume 1, 339-345, September 27–October 1, 2010
Paper No: IPC2010-31211
... of the misalignment imperfection of girth weld joint is calculated by FEM to review the applicability of relevant formulas given in BS7910 for engineering critical assessment. Finally, it is concluded by FE simulation that though the stress magnification effect of shallow cracks in weld toe zone is significant...
Proceedings Papers

Proc. ASME. IPC2010, 2010 8th International Pipeline Conference, Volume 4, 187-194, September 27–October 1, 2010
Paper No: IPC2010-31386
.... KEYWORDS Pipeline, girth weld, strain-based design, tensile strain capacity, apparent toughness, tearing resistance curve INTRODUCTION Strain-based design (SBD) is a relatively new methodology developed for pipeline design at high longitudinal strain conditions. These large strain conditions can be induced...
Proceedings Papers

Proc. ASME. IPC2010, 2010 8th International Pipeline Conference, Volume 4, 159-163, September 27–October 1, 2010
Paper No: IPC2010-31369
... 07 04 2011 Tensile strain capacity (TSC) is a critical component of the strain-based design of pipelines. TSC is affected by a number of material parameters, such as the strain hardening rate, weld strength mismatch, and toughness. Girth weld high-low misalignment, internal pressure...
Proceedings Papers

Proc. ASME. IPC2010, 2010 8th International Pipeline Conference, Volume 2, 593-598, September 27–October 1, 2010
Paper No: IPC2010-31374
... 07 04 2011 Girth Welding of high strength steels such as X80 or X100 poses a number of challenges because of the sensitivity of weld mechanical properties to variations in welding parameters and material properties. This dependency is further complicated by the application...
Proceedings Papers

Proc. ASME. IPC2010, 2010 8th International Pipeline Conference, Volume 2, 383-389, September 27–October 1, 2010
Paper No: IPC2010-31219
... 07 04 2011 The following cases of girth welded region between pipelines having different base strength were considered. The pipeline shows different fracture behavior from girth welded pipeline between similar materials due to strength mismatch and residual stress distribution...
Proceedings Papers

Proc. ASME. IPC2008, 2008 7th International Pipeline Conference, Volume 1, 223-228, September 29–October 3, 2008
Paper No: IPC2008-64630
... 10 07 2009 Stress analysis is a prerequisite of Engineering Critical Analysis (ECA) of pipeline girth welds in new constructions. Such analysis is required in pipe construction standards, such as API Standard 1104 Appendix A. However no specific procedures of stress analysis...
Proceedings Papers

Proc. ASME. IPC2008, 2008 7th International Pipeline Conference, Volume 3, 437-443, September 29–October 3, 2008
Paper No: IPC2008-64632
... 10 07 2009 Pulsed gas metal arc welding (P-GMAW) is one of the most effective joining methods used for mainline field girth welding of large diameter, long distance pipelines. Single torch and single wire P-GMAW utilizing narrow-groove weld geometry has been applied extensively in both...
Proceedings Papers

Proc. ASME. IPC2008, 2008 7th International Pipeline Conference, Volume 3, 523-531, September 29–October 3, 2008
Paper No: IPC2008-64030
.... The capacity of compressive axial strain of the pipe is affected by a large number of factors: D/t ratio, Y/T ratio, internal pressure and girth weld effect. Consequently, full solutions for compressive strain limits related to above-mentioned factors do not yet exist in codes and standards. In recent years...
Topics: Design, Pipelines
Proceedings Papers

Proc. ASME. IPC2008, 2008 7th International Pipeline Conference, Volume 3, 533-541, September 29–October 3, 2008
Paper No: IPC2008-64031
... strain of the pipe is affected by a large number of factors: D/t ratio, Y/T ratio, internal pressure, girth weld effect, and defect size and location. Consequently, full solutions for tensile strain limits related to above-mentioned factors do not yet exist in codes and standards. In recent years...
Topics: Design, Pipelines
Proceedings Papers

Proc. ASME. IPC2002, 4th International Pipeline Conference, Parts A and B, 451-455, September 29–October 3, 2002
Paper No: IPC2002-27188
... that strength mismatch of girth weld had great effect on the integrity of the pipeline. Overmatch is preferred for low-grade pipeline (steel grade is usually X60 or lower). As to the high-grade pipeline, in order to reduce the sensitivity of cold crack, hydrogen induced crack (HIC) and stress induced corrosion...
Proceedings Papers

Proc. ASME. IPC2004, 2004 International Pipeline Conference, Volumes 1, 2, and 3, 1573-1581, October 4–8, 2004
Paper No: IPC2004-0768
... 10 12 2008 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...
Proceedings Papers

Proc. ASME. IPC2004, 2004 International Pipeline Conference, Volumes 1, 2, and 3, 1607-1614, October 4–8, 2004
Paper No: IPC2004-0524
... 10 12 2008 Buried defects, such as lack-of-sidewall fusion defects, are some of the most commonly occurring defects in mechanized girth welds. Although some of the existing ECA (Engineering Critical Assessment) procedures permit the assessment of the significance of buried defects...
Proceedings Papers

Proc. ASME. IPC2006, Volume 3: Materials and Joining; Pipeline Automation and Measurement; Risk and Reliability, Parts A and B, 545-552, September 25–29, 2006
Paper No: IPC2006-10474
..., such as that induced by frost heave, landslide, and seismic activities. The “capacity” is most often controlled by girth weld tensile strain limits, as girth welds tend to be the weakest link in pipelines experiencing high tensile strains. The tensile strain limits of girth welds are affected by a large number...
Topics: Design, Pipelines
Proceedings Papers

Proc. ASME. IPC2006, Volume 3: Materials and Joining; Pipeline Automation and Measurement; Risk and Reliability, Parts A and B, 563-574, September 25–29, 2006
Paper No: IPC2006-10491
... 07 10 2008 Alternative girth weld defect acceptance criteria implemented in major international codes and standards vary significantly. The requirements for welding procedure qualification and the allowable defect size are often very different among the codes and standards...