Actions for Estimation of Lower-Bound KJc on Pressure Vessel Steels from Invalid Data

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Estimation of Lower-Bound KJc on Pressure Vessel Steels from Invalid Data / DE. McCabe, JG. Merkle

Conference Author
Fatigue and Fracture Mechanics: 28th Volume (28th : 1996 : Saratoga Springs, New York)
Physical Description
1 online resource (16 pages) : illustrations, figures, tables
Additional Creators
McCabe, DE., Merkle, JG., American Society for Testing and Materials, and ASTM International
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Summary
Statistical methods are currently being introduced into the transition temperature characterization of ferritic steels. The objective is to replace imprecise correlations between empirical impact test methods and universal KIc or KIa lower-bound curves with direct use of material-specific fracture mechanics data. This paper will introduce a computational procedure that couples order statistics, weakest-link statistical theory, and a constraint model to arrive at estimates of lower-bound KJc values. All of the above concepts have been used before to meet various objectives. In the present case, the scheme is to make a best estimate of lower-bound fracture toughness when resource KJc data are too few to use conventional statistical analyses. The utility of the procedure is of greatest value in the middle-to-high toughness part of the transition range where specimen constraint loss and elevated lower-bound toughness interfere with the conventional statistical analysis methods.
Dates of Publication and/or Sequential Designation
Volume 1997, Issue 1321 (January 1997)
Subject(s)
Other Subject(s)
ISBN
9780803153745 (e-ISBN)
9780803124103
0803124104
Digital File Characteristics
text file PDF
Bibliography Note
Includes bibliographical references 15.
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Also available online via the World Wide Web. Tables of contents and abstracts freely available; full-text articles available by subscription.
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Also available in PDF edition.
Reproduction Note
Electronic reproduction. W. Conshohocken, Pa. : ASTM International, 1997. Mode of access: World Wide Web. System requirements: Web browser. Access may be restricted to users at subscribing institutions.
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Mode of access: World Wide Web.
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ASTM International PDF Purchase price USD25.
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