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Interfacial debonding and sliding in brittle-matrix composites measured using an improved fiber pullout technique

Mumm, D. R. and Faber, K. T. (1995) Interfacial debonding and sliding in brittle-matrix composites measured using an improved fiber pullout technique. Acta Metallurgica et Materialia, 43 (3). pp. 1259-1270. ISSN 0956-7151. doi:10.1016/0956-7151(94)00294-R.

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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.

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Faber, K. T.0000-0001-6585-2536
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.
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Advanced Research Projects Agency (ARPA)UNSPECIFIED
Office of Naval Research (ONR)N00014-90-J-4020
Issue or Number:3
Record Number:CaltechAUTHORS:20140908-181327859
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Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:49427
Deposited By: George Porter
Deposited On:10 Sep 2014 23:48
Last Modified:10 Nov 2021 18:44

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