The University of Southampton
University of Southampton Institutional Repository

Damage mechanisms and the mechanical properties of a laminated 0/90 ceramic/matrix composite

Damage mechanisms and the mechanical properties of a laminated 0/90 ceramic/matrix composite
Damage mechanisms and the mechanical properties of a laminated 0/90 ceramic/matrix composite
The tensile properties of a 0/90 laminated CAS matrix composite reinforced with Nicalon fibers have been measured. Some effects of notches have also been explored. Changes in modulus and permanent strain caused by matrix cracking have been measured and compared with available models. For this comparison, independent measurements have been made of the constituent properties and the residual stress. The ultimate tensile strength has also been measured and compared with a global load-sharing model. It is concluded that lower-bound matrix cracking models provide good predictability of the stresses at which various matrix cracking mechanisms first operate. Also, the ultimate tensile strength is found to be consistent with a global load-sharing model, based on the in situ strength properties of the fibers. Conversely, the evolution of matrix cracks at stresses above the lower bound has yet to be adequately modeled. In addition, a need is identified for improved models relating elastic properties and permanent strains to matrix crack spacing.
0002-7820
3321-3330
Beyerle, Douglas S.
8b5e2059-7fe5-4681-96eb-1151eb821fa2
Spearing, S. Mark
9e56a7b3-e0e8-47b1-a6b4-db676ed3c17a
Evans, Anthony G.
0e10b0ae-fd33-4b1c-a1cb-78579ef8e68b
Beyerle, Douglas S.
8b5e2059-7fe5-4681-96eb-1151eb821fa2
Spearing, S. Mark
9e56a7b3-e0e8-47b1-a6b4-db676ed3c17a
Evans, Anthony G.
0e10b0ae-fd33-4b1c-a1cb-78579ef8e68b

Beyerle, Douglas S., Spearing, S. Mark and Evans, Anthony G. (1992) Damage mechanisms and the mechanical properties of a laminated 0/90 ceramic/matrix composite. Journal of the American Ceramic Society, 72 (12), 3321-3330. (doi:10.1111/j.1151-2916.1992.tb04428.x).

Record type: Article

Abstract

The tensile properties of a 0/90 laminated CAS matrix composite reinforced with Nicalon fibers have been measured. Some effects of notches have also been explored. Changes in modulus and permanent strain caused by matrix cracking have been measured and compared with available models. For this comparison, independent measurements have been made of the constituent properties and the residual stress. The ultimate tensile strength has also been measured and compared with a global load-sharing model. It is concluded that lower-bound matrix cracking models provide good predictability of the stresses at which various matrix cracking mechanisms first operate. Also, the ultimate tensile strength is found to be consistent with a global load-sharing model, based on the in situ strength properties of the fibers. Conversely, the evolution of matrix cracks at stresses above the lower bound has yet to be adequately modeled. In addition, a need is identified for improved models relating elastic properties and permanent strains to matrix crack spacing.

Full text not available from this repository.

More information

Published date: 1992

Identifiers

Local EPrints ID: 22857
URI: https://eprints.soton.ac.uk/id/eprint/22857
ISSN: 0002-7820
PURE UUID: 0e849b3b-0e20-4805-9d8c-e55af4f4ffd3
ORCID for S. Mark Spearing: ORCID iD orcid.org/0000-0002-3059-2014

Catalogue record

Date deposited: 30 Jan 2007
Last modified: 17 May 2019 00:35

Export record

Altmetrics

Contributors

Author: Douglas S. Beyerle
Author: Anthony G. Evans

University divisions

Download statistics

Downloads from ePrints over the past year. Other digital versions may also be available to download e.g. from the publisher's website.

View more statistics

Atom RSS 1.0 RSS 2.0

Contact ePrints Soton: eprints@soton.ac.uk

ePrints Soton supports OAI 2.0 with a base URL of https://eprints.soton.ac.uk/cgi/oai2

This repository has been built using EPrints software, developed at the University of Southampton, but available to everyone to use.

We use cookies to ensure that we give you the best experience on our website. If you continue without changing your settings, we will assume that you are happy to receive cookies on the University of Southampton website.

×