Journal
JOURNAL OF COMPOSITE MATERIALS
Volume 48, Issue 18, Pages 2273-2280Publisher
SAGE PUBLICATIONS LTD
DOI: 10.1177/0021998313497069
Keywords
Optical fiber; composite materials; interfacial adhesion; aging; water diffusion; pull-out
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The present paper reports on the study of the interfacial adhesion of an optical fiber embedded in a composite material aged in distilled water. Samples composed of optical fibers embedded in an epoxy vinylester resin or in resin/glass fibers systems were submitted to different aging duration in distilled water. Pull-out tests on optical fibers were carried out to measure the effect of water diffusion and glass concentration on fiber bonding. For resin/optical fiber samples, water diffusion leads to damage of the polymer/matrix interface from an aging duration of 15 days, and the interfacial stress values present a low decrease up to an aging duration of 60 days. For the case of composite/optical fiber samples, the greater the glass fiber content, the less is the water damage at the polymer interface. On the other hand, a linear development of interfacial debonding stress with increasing glass fiber concentration is reported.
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