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Notch Sensitivity and Stress Redistribution in Three Ceramic-Matrix Composites
- Source :
- Journal of the American Ceramic Society. 78:1719-1728
- Publication Year :
- 1995
- Publisher :
- Wiley, 1995.
-
Abstract
- Fiber-reinforced ceramic-matrix composites (CMCs) depend upon inelastic mechanisms to diffuse stress concentrations associated with holes, notches, and cracks. These mechanisms consist of fiber debonding and pullout, multiple matrix cracking, and shear band formation. In order to understand these effects, experiments have been conducted on several double-edge-notched CMCs that exhibit different stress redistribution mechanisms. Stresses have been measured and mechanisms identified by using a combination of methods including X-ray imaging, edge replication, and thermoelastic analysis. Multiple matrix cracking was found to be the most effective stress redistribution mechanism.
Details
- ISSN :
- 15512916 and 00027820
- Volume :
- 78
- Database :
- OpenAIRE
- Journal :
- Journal of the American Ceramic Society
- Accession number :
- edsair.doi...........d0bbd2baa81f9dfc5016043944389e71