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Stress corrosion and fatigue cracking in a unidirectional ceramic Matrix composite

Record type: Article

A study of matrix cracking in a unidirectional ceramic-matrix composite under static loading conditions has been conducted. The evolution of crack density with time has been measured using both flexure and uniaxial tension tests. Subcritical cracking has been observed at stresses below that required to develop matrix cracks in short-duration, monotonic loading tests. Furthermore, a relatively high final crack density has been observed following extended periods (~106 s) under static load. A fracture mechanics analysis applicable to subcritical crack growth has been developed and used successfully to model the evolution of matrix cracking with time and applied stress. The model incorporates the properties of the matrix, fibers, and interfaces, as well as the residual stress and the initial flaw distribution in the matrix.

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Citation

Spearing, S. Mark, Zok, Frank W. and Evans, Anthony G. (1994) Stress corrosion and fatigue cracking in a unidirectional ceramic Matrix composite Journal of the American Ceramic Society, 77, (2), pp. 562-570. (doi:10.1111/j.1151-2916.1994.tb07030.x).

More information

Published date: 1994

Identifiers

Local EPrints ID: 22766
URI: http://eprints.soton.ac.uk/id/eprint/22766
ISSN: 0002-7820
PURE UUID: 45ba5ba7-a61c-46cc-aff7-c43daff9dad5

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Date deposited: 30 Jan 2007
Last modified: 17 Jul 2017 16:20

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Contributors

Author: Frank W. Zok
Author: Anthony G. Evans

University divisions


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