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Fracture mechanics applied to elevated temperature crack growthTwenty-six isothermal crack growth tests were performed on Hastelloy-X tubular specimens at a variety of temperatures and strain ranges. Conditions were selected to include nominally elastic and nominally plastic conditions. A number of parameters including the stress intensity factor, strain intensity factor, J-integral, Crack Opening Displacement, and Tompkins model were examined for their ability to correlate the data. Test conditions were selected such that growth rates at a single value of the parameter were obtained at radially different crack lengths, thus exploring the geometry independence of the correlating parameter. None of the parameters were fully satisfactory. However, COD calculated from J-integral appeared to be the most successful.
Document ID
19890060334
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
Authors
Jordan, E. H.
(Connecticut, University Storrs; United Technologies Corp., Pratt and Whitney Aircraft Group, East Hartford, United States)
Meyers, G. J.
(MOOG, Inc. East Aurora, NY, United States)
Date Acquired
August 14, 2013
Publication Date
July 1, 1989
Publication Information
Publication: ASME, Transactions, Journal of Engineering Materials and Technology
Volume: 111
ISSN: 0094-4289
Subject Category
Structural Mechanics
Accession Number
89A47705
Funding Number(s)
CONTRACT_GRANT: NAS3-22550
Distribution Limits
Public
Copyright
Other

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