Accept/Reject Criteria for Structural Ceramics: Some Effects of Cavities on the Fracture of Ceramics - Cylindrical Holes
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Begun in 1973, the Review of Progress in Quantitative Nondestructive Evaluation (QNDE) is the premier international NDE meeting designed to provide an interface between research and early engineering through the presentation of current ideas and results focused on facilitating a rapid transfer to engineering development.
This site provides free, public access to papers presented at the annual QNDE conference between 1983 and 1999, and abstracts for papers presented at the conference since 2001.
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Abstract
The problem of fracture from cylindrical cavities in brittle materials has been analyzed. The analysis is based on the conditions required to extend cracks that pre-exist at the cavity surface. It involves the combined use of fracture mechanics and statistics solutions for crack extension in the concentrated stress field around the cavity. The general pertinence of the approach is substantiated by experimental studies of fracture from cavities in polycrystalline alumina.