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Keywords: ductile fracture
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Proceedings Papers

Proc. ASME. IPC2020, Volume 3: Operations, Monitoring, and Maintenance; Materials and Joining, V003T05A002, September 28–30, 2020
Paper No: IPC2020-9299
...RECENT PROGRESS IN DEVELOPMENT OF DUCTILE FRACTURE ARREST METHODOLOGY BASED ON CTOA: TEST STANDARD, TRANSFERABILITY AND METHODOLOGY S. Xu1, C. Bassindale2, J. Xue1, B.W. Williams1 and X. Wang2 1CanmetMATERIALS, Natural Resources Canada 183 Longwood Rd S, Hamilton, Ontario, Canada L8P 0A5 2Dept...
Proceedings Papers

Proc. ASME. IPC2010, 2010 8th International Pipeline Conference, Volume 2, 269-278, September 27–October 1, 2010
Paper No: IPC2010-31076
... using electric discharge machining (EDM and (iii) CTOA values from surface measurement of MDCB specimens were comparable to those derived from S-SSM of DWTT specimens, but the surface values of DWTT were higher than those of MDCB specimens. KEYWORDS: CTOA, MDCB, DWTT, ductile fracture, fracture...
Topics: Pipes, Steel
Proceedings Papers

Proc. ASME. IPC2008, 2008 7th International Pipeline Conference, Volume 3, 29-38, September 29–October 3, 2008
Paper No: IPC2008-64060
... 10 07 2009 A major issue of applying the crack-tip opening angle (CTOA) approach to fast ductile fracture control is to characterize material toughness (CTOA c ) using laboratory-scale specimens and to recommend a mill test. In this report, existing direct and indirect CTOA measurement...
Proceedings Papers

Proc. ASME. IPC2004, 2004 International Pipeline Conference, Volumes 1, 2, and 3, 1615-1623, October 4–8, 2004
Paper No: IPC2004-0525
.... The review covers (1) constraint theories and experimental evidences, (2) constraint models for brittle and ductile fracture, and (3) limitations of current constraint models. The paper closes with thoughts on the applications of the constraint models and theories to ductile fracture processes, which...
Proceedings Papers

Proc. ASME. IPC2004, 2004 International Pipeline Conference, Volumes 1, 2, and 3, 1725-1732, October 4–8, 2004
Paper No: IPC2004-0192
... 10 12 2008 This paper reports results of tests on flow and ductile fracture of a very high toughness steel with Charpy V-notch absorbed energy (CVN energy) at room temperature of 471 J. The microstructure of the steel is bainite/ferrite and its strength is equivalent to X80 grade...
Proceedings Papers

Proc. ASME. IPC2006, Volume 3: Materials and Joining; Pipeline Automation and Measurement; Risk and Reliability, Parts A and B, 201-208, September 25–29, 2006
Paper No: IPC2006-10231
... 07 10 2008 Recent developments in ductile fracture resistance measures in high grade steels in the pipeline industry include the crack tip opening angle (CTOA) and “steady state” fracture propagation energy, using 3-point bend specimens. The CTOA has been found to be a function...