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
Hetero-core fiber Bragg grating for simultaneous measurement of strain and bending based on cladding mode ratiometric detection
An Sun,Zhishen Wu,Zhishen Wu +2 more
TL;DR: In this paper, a simple but practical method using multimode-single mode fiber Bragg grating (FBG) for cladding mode based simultaneous measurement of strain and bending is proposed and investigated experimentally.
Dissertation
Applying the DMAIC method for developing a PVDF matrix composite for integrated structural load sensing
TL;DR: Greminger et al. as mentioned in this paper presented a Master of science thesis on engineering management with an emphasis on the use of machine learning techniques in the field of software engineering, which was published in 2014.
Journal ArticleDOI
Performance Analysis and Experimental Verification for FBG Sensors Applied for Smart Structure
Xi Yuan Chen,Lin Fang +1 more
TL;DR: In this article, a simple, convenient, and low cost experimental method to verify the performance of fiber Bragg grating (FBG) sensor has been proposed, which consists of an accurate temperature controlling and measuring subsystem, supporting and adjusting subsystem, collimating and positioning subsystem and fine motion and measuring sub-system.
Proceedings ArticleDOI
Damage Progression Identification in Woven Composites With Fiber Bragg Grating Sensors
TL;DR: In this article, measurements from low-impact velocity experiments including embedded and surface mounted optical fiber Bragg grating (FBG) sensors were used to obtain detailed information pertaining to damage progression in two-dimensional laminate woven composites.
Proceedings ArticleDOI
Comparison of grating structures in optical fibers and integrated optics for MEMS applications
TL;DR: In this paper, the authors compare various grating structures and their suitability for MEMS applications in the context of both fiber and planar waveguide technology, and the differences and similarities among these methodologies using silicon micromachining are brought out Parameters of interest, such as efficiency of micro-grating structures, ambient effects that influence the performance of the devices/systems are also discussed.
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.