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Reliability analysis of structural ceramics subjected to biaxial flexureThe reliability of alumina disks subjected to biaxial flexure is predicted on the basis of statistical fracture theory using a critical strain energy release rate fracture criterion. Results on a sintered silicon nitride are consistent with reliability predictions based on pore-initiated penny-shaped cracks with preferred orientation normal to the maximum principal stress. Assumptions with regard to flaw types and their orientations in each ceramic can be justified by fractography. It is shown that there are no universal guidelines for selecting fracture criteria or assuming flaw orientations in reliability analyses.
Document ID
19910041882
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
Authors
Chao, Luen-Yuan
(Utah Univ. Salt Lake City, UT, United States)
Shetty, Dinesh K.
(Utah, University Salt Lake City, United States)
Date Acquired
August 14, 2013
Publication Date
February 1, 1991
Publication Information
Publication: American Ceramic Society, Journal
Volume: 74
ISSN: 0002-7820
Subject Category
Nonmetallic Materials
Accession Number
91A26505
Funding Number(s)
CONTRACT_GRANT: NAG3-789
Distribution Limits
Public
Copyright
Other

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