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Studies on Crack Initiation and Stable Crack Growth / CF. Shih, HG. deLorenzi, WR. Andrews

Conference Author
Elastic-Plastic Fracture (1977 : Atlanta, Georgia)
Physical Description
1 online resource (56 pages) : illustrations, figures, tables
Additional Creators
Shih, CF., deLorenzi, HG., Andrews, WR., American Society for Testing and Materials, and ASTM International
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Summary
Experimental results are presented which suggest that parameters based on the J-integral and the crack opening tip displacement ? are viable characterizations of crack initiation and stable crack growth. Observations based on some theoretical studies and finite-element investigations of the extending crack revealed that J and ? when appropriately employed do indeed characterize the near-field deformation. In particular, the analytical and experimental studies show that crack initiation is characterizable by the critical value of J or ?, and stable crack growth is characterizable in terms of the J or ? resistance curves. The crack opening angle, d?/da, appears to be relatively constant over a significant range of crack growth. Thus, appropriate measures of the material toughness associated with initiation are JIc and ?Ic, and measures of material toughness associated with stable crack growth are given by the dimensionless parameters TJ [= (E/?o2)(dJ/da)] and T? [= (E/?o)(d?/(da)]. The two-parameter characterization of fracture behavior by JIc and TJ or ?Ic and T? is analogous to the characterization of deformation behavior by the yield stress and strain hardening exponent.
Dates of Publication and/or Sequential Designation
Volume 1979, Issue 668 (January 1979)
Subject(s)
Other Subject(s)
ISBN
9780803147393 (e-ISBN)
9780803103306
0803103301
Digital File Characteristics
text file PDF
Bibliography Note
Includes bibliographical references 37.
Other Forms
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, 1979. Mode of access: World Wide Web. System requirements: Web browser. Access may be restricted to users at subscribing institutions.
Technical Details
Mode of access: World Wide Web.
Source of Acquisition
ASTM International PDF Purchase price USD25.
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