NDLI: Determination of CTOD Resistance Curves in SENT Specimens With a Tilted Notch

Content Provider	The American Society of Mechanical Engineers (ASME) Digital Collection
Author	Minnebruggen, Koen Van Verstraete, Matthias Denys, Rudi Thibaux, Philippe Waele, Wim De
Copyright Year	2014
Abstract	The Single Edge Notched Tension (SENT) specimen is a common tool for the determination of tearing resistance in pipeline steels and welds. However, it assumes pure mode I crack tip loading, which is unrepresentative for the evaluation of spiral seam weld flaws. To this purpose, the authors have performed SENT tests using specimens with a tilted notch. This paper evaluates experimental techniques to obtain the tearing resistance of such specimens. Mixed-mode crack opening displacement and ductile tearing are successfully measured using digital image correlation and direct current potential drop, respectively. The latter technique involves a calibration on the basis of a thermo-electric finite element model. Tearing resistance tends to increase with increasing notch tilt angle. Based on the limited number of tests performed, tilted notch SENT testing appears to be a promising tool for the assessment of spiral seam weld flaws.
Sponsorship	Pipeline Division
File Format	PDF
ISBN	9780791846131
DOI	10.1115/IPC2014-33571
Volume Number	Volume 4: Production Pipelines and Flowlines; Project Management; Facilities Integrity Management; Operations and Maintenance; Pipelining in Northern and Offshore Environments; Strain-Based Design; Standards and Regulations
Conference Proceedings	2014 10th International Pipeline Conference
Language	English
Publisher Date	2014-09-29
Publisher Place	Calgary, Alberta, Canada
Access Restriction	Subscribed
Subject Keyword	Welded joints Finite element model Pipelines Tension Calibration Fracture (materials) Steel Displacement Testing
Content Type	Text
Resource Type	Article

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