NDLI: Extrapolation of Tearing Resistance Curves

Content Provider	The American Society of Mechanical Engineers (ASME) Digital Collection
Author	Kim, R. W. Wallin
Copyright Year	2009
Abstract	Due to the measuring capacity limitation in normal test specimens, it is often necessary to extrapolate the tearing resistance curves beyond the measuring limit of the specimen. There are theoretically two possible limits for extrapolation. A conservative estimate, sometimes used in e.g. the British R6 failure assessment method is to assume crack growth at a constant J, equal to the limiting value. A more realistic, but possibly un-conservative estimate of the tearing resistance is based on the assumption that crack growth will continue with the same slope at the limiting value. The true behavior is likely to lie somewhere between these two extremes. Conservative extrapolation beyond a limiting crack growth can be performed by considering the change in tearing resistance with crack growth. Two possible methods are in this presentation highlighted through a simple hypothetic example. The realism of the two methods is then tested on actual tearing resistance data going to large crack growths.
Sponsorship	Pressure Vessels and Piping
Starting Page	281
Ending Page	286
Page Count	6
File Format	PDF
ISBN	9780791843666
DOI	10.1115/PVP2009-77193
e-ISBN	9780791838549
Volume Number	Volume 3: Design and Analysis
Conference Proceedings	ASME 2009 Pressure Vessels and Piping Conference
Language	English
Publisher Date	2009-07-26
Publisher Place	Prague, Czech Republic
Access Restriction	Subscribed
Subject Keyword	Failure Fracture (materials)
Content Type	Text
Resource Type	Article

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