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Matrix crack spacing in brittle matrix composites

Matrix crack spacing in brittle matrix composites
Matrix crack spacing in brittle matrix composites
A model describing the evolution of matrix cracks in undirectional continuous fiber, brittle matrix composites is developed. The approach involves calculation off the steady state strain energy release rate available for crack extension in terms of the constituent properties, the applied stress and the distances to the neighboring cracks. Interactions between cracks are found to occur when the crack spacing falls below twice the slip length. The model provides an analytical solution to the crack spacing for periodic arrays of cracks. Comparisons are conducted with predictions derived from computer simulations of random cracking. The effects of the matrix flaw density are briefly considered.
1359-6454
2033-2043
Zok, F.W.
0d33668c-1604-46cf-9300-8e3e92ac48d9
Spearing, S.M.
9e56a7b3-e0e8-47b1-a6b4-db676ed3c17a
Zok, F.W.
0d33668c-1604-46cf-9300-8e3e92ac48d9
Spearing, S.M.
9e56a7b3-e0e8-47b1-a6b4-db676ed3c17a

Zok, F.W. and Spearing, S.M. (1992) Matrix crack spacing in brittle matrix composites. Acta Materialia, 40 (8), 2033-2043. (doi:10.1016/0956-7151(92)90189-L).

Record type: Article

Abstract

A model describing the evolution of matrix cracks in undirectional continuous fiber, brittle matrix composites is developed. The approach involves calculation off the steady state strain energy release rate available for crack extension in terms of the constituent properties, the applied stress and the distances to the neighboring cracks. Interactions between cracks are found to occur when the crack spacing falls below twice the slip length. The model provides an analytical solution to the crack spacing for periodic arrays of cracks. Comparisons are conducted with predictions derived from computer simulations of random cracking. The effects of the matrix flaw density are briefly considered.

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Published date: 1992

Identifiers

Local EPrints ID: 22774
URI: http://eprints.soton.ac.uk/id/eprint/22774
ISSN: 1359-6454
PURE UUID: d9ac68bf-1bab-4b64-ab72-1fa0eed29bd1
ORCID for S.M. Spearing: ORCID iD orcid.org/0000-0002-3059-2014

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Date deposited: 30 Jan 2007
Last modified: 16 Mar 2024 03:37

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Contributors

Author: F.W. Zok
Author: S.M. Spearing ORCID iD

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