Journal ArticleDOI
Cure monitoring of smart composites using Fiber Bragg Grating based embedded sensors
Abstract:
A sensor embedded in the composite laminate can act as a temperature transducer during the composite cure mechanism. Once the composite is cured, the same sensor can be used to provide the information about the mechanical changes that influence the performance of the material. Fiber Bragg Grating (FBG) sensor is one such sensor which one can use for the composite cure monitoring. We present here the results obtained with an associated FBG sensor system for the cure monitoring of smart composites. The performance of the embedded FBG sensor smart composite specimens under 3- and 4-point bending conditions are also being investigated. Finally, the performance analysis has been extended to cantilever specimens.read more
Citations
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Journal ArticleDOI
Impact test of composite sandwich beam with built-in FBG sensor
TL;DR: In this article, a four-point bending test, low-speed impact test, and residual bending capacity test were carried out on the sandwich beams, where the built-in FBG sensor and externally attached resistance strain gauges showed that, with the characteristics of high sensitivity and accuracy, FBG sensors could reflect the total deformation behavior of the sandwich beam.
References
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BookDOI
Fiber optic sensors : an introduction for engineers and scientists
Eric Udd,William B. Spillman +1 more
TL;DR: Udd et al. as discussed by the authors described the emergence of fiber-optic sensor technology and its application in industrial applications, including light sources, sensors, and sensors based on the Sagnac Interferometer and passive ring resonance.
BookDOI
Optical Fiber Sensor Technology
TL;DR: In this article, the authors present an overview of the development of optical fiber sensor technology and its application in the field of temperature measurement and current measurement, as well as other applications.
Proceedings ArticleDOI
Multifunction, distributed optical fiber sensor for composite cure and response monitoring
TL;DR: In this paper, Bragg gratings have been exposed into the core of optical fibers at specific locations to implement distributed, discrete gages for measurement of strain and temperature for composite specimen curing and bending.
Proceedings ArticleDOI
Comparative study of optical fiber cure-monitoring methods
TL;DR: In this paper, a comparative study was conducted for different types of optical fiber sensor developed to monitor the cure of an epoxy resin system. And the advantages and disadvantages of these three methods are discussed.