Evaluation of embedded optical fiber sensors in composites: EFPI sensor fabrication and quasi-static evaluation

JA Etches, G Fernando

Research output: Contribution to journalArticle (Academic Journal)peer-review

7 Citations (Scopus)

Abstract

This article reports on the fabrication and evaluation of extrinsic Fabry-Perot interferometric (EFPI) sensors when embedded in fiber-reinforced composites and tested under quasi-static tensile and compressive mechanical loading. The EFPI strain sensors were embedded in carbon fiber composite test specimens, and their performance was compared against a surface-mounted extensometer and electrical resistance strain gauges. When the composite was subjected to quasi-static tensile loading, the sensors failed around a strain level of 0.5%; under compressive loading, the sensors survived until the failure of the composite at 1.1% strain. The EFPI sensors used in this study were fabricated in-house and the issues relating to fabrication are discussed in the context of their performance when embedded in composites.
Translated title of the contributionEvaluation of embedded optical fiber sensors in composites: EFPI sensor fabrication and quasi-static evaluation
Original languageEnglish
Pages (from-to)1265-1274
Number of pages10
JournalPolymer Composites
Volume30
Issue number9
Early online date11 Sep 2008
DOIs
Publication statusPublished - Sep 2009

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