Abstract
In this paper, based on the creep constraint parameter R, the creep crack-tip constraints in axially cracked pipelines and various test specimens have been analyzed under conditions of plane strain and steady-state creep, and correlation of the constraint between the cracked pipes and test specimens has been investigated. The creep crack-tip constraint of the single-edge notched tension (SENT) specimen is close to that of axially cracked pipes. The pin-loaded SENT specimen (SENTp) with a/W = 0.35 and 0.05 W loading point offset provides a closely matched creep crack-tip constraint with the axially cracked pipes. It will be more accurate if the creep crack growth rate and creep fracture toughness data measured by the SENTp specimen are used in integrity assessment of axially cracked pipes. The results provide a strong support for use of constraint-designed specimens in creep failure assessments of pressurized pipes at high temperature.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callMore From: International Journal of Pressure Vessels and Piping
Disclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
