Interfacial debonding and sliding in brittle-matrix composites measured using an improved fiber pullout technique
- Creators
- Mumm, D. R.
- Faber, K. T.
Abstract
A modified fiber pullout technique has been developed which allows direct experimental evaluation of the force-displacement relation for a crack-bridging fiber. The technique allows a continuous, accurate measurement of stable, progressive interfacial debonding and frictional sliding. Coupled with an appropriate analysis, the test provides a quantitative determination of interfacial properties relevant to the toughening of brittle materials through fiber-reinforcement. The technique has been used to measure interfacial debonding and sliding in three SiC fiber/glass composite systems. The fibers differ primarily in diameter and surface roughness characteristics allowing a unique evaluation of the effects of these parameters. The results indicate that fiber surface roughness plays a significant role in the interfacial debonding and sliding behavior. Load fluctuations observed during both monotonic and cyclic loading are explained by invoking the concept of asperity-asperity interaction during sliding at a rough interface.
Additional Information
Copyright © 1995 Elsevier. (Received 6 April 1994) This work was supported by the Advanced Research Projects Agency through the Office of Naval Research under Grant No. N00014-90-J-4020. The SiC Monofilaments in this work have been graciously supplied by Textron Specialty Materials. Lowell, Mass., and British Petroleum International Ltd. Sunbury-on-Thames, Middlesex, England.Additional details
- Eprint ID
- 49427
- DOI
- 10.1016/0956-7151(94)00294-R
- Resolver ID
- CaltechAUTHORS:20140908-181327859
- Advanced Research Projects Agency (ARPA)
- N00014-90-J-4020
- Office of Naval Research (ONR)
- Created
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2014-09-10Created from EPrint's datestamp field
- Updated
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2021-11-10Created from EPrint's last_modified field