Monitoring of fatigue crack growth in composite adhesively bonded joints using Fiber Bragg Gratings
TLDR
In this paper, an array of equally spaced sensors was applied to the side of a single lap tapered joint, in order to simulate its embedment into the composite laminate, and the position of the crack tip was monitored using both an optical microscope and an ultrasonic phased array sensor.About:
This article is published in Procedia Engineering.The article was published on 2011-01-01 and is currently open access. It has received 51 citations till now. The article focuses on the topics: Fiber Bragg grating & Composite laminates.read more
Citations
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Fibre Optic Sensors for Structural Health Monitoring of Aircraft Composite Structures: Recent Advances and Applications.
TL;DR: Recent research and applications in structural health monitoring of composite aircraft structures using FOS have been critically reviewed, considering both the multi-point and distributed sensing techniques.
Journal ArticleDOI
Damage tolerance and structural monitoring for wind turbine blades.
Malcolm McGugan,Gilmar Ferreira Pereira,Bent F. Sørensen,Helmuth Langmaack Toftegaard,Kim Branner +4 more
TL;DR: By improving the understanding of material properties that control damage propagation it will be possible to combine damage tolerant structural design, monitoring systems, inspection techniques and modelling to manage the life cycle of the structures, leading to a more effective exploitation of offshore wind.
Journal ArticleDOI
An integrated structural health monitoring approach for crack growth monitoring
P. A. Vanniamparambil,Ivan Bartoli,Kavan Hazeli,Jefferson Cuadra,Eric Schwartz,Raghavendra Saralaya,Antonios Kontsos +6 more
TL;DR: In this paper, a structural health monitoring approach consisting of guided ultrasonic waves, acoustic emission, and digital image correlation, as well as real-time and postmortem analyses, is implemented.
Journal ArticleDOI
Determination of the strain distribution in adhesive joints using Fiber Bragg Grating (FBG)
TL;DR: In this paper, a technique based on optic fibers is proposed as a possible means for real-time health monitoring of adhesive connections, which is used to measure strain levels inside an adhesive joint.
Journal ArticleDOI
Fatigue Crack Growth Monitoring in Composite Bonded Lap Joints by a Distributed Fibre Optic Sensing System and Comparison with Ultrasonic Testing
Andrea Bernasconi,Michele Carboni,Lorenzo Comolli,Riccardo Galeazzi,Andrea Gianneo,M. Kharshiduzzaman +5 more
TL;DR: In this paper, the back-face technique is exploited to monitor fatigue crack growth in a composite, single lap adhesive bonded joint, using distributed sensing by Optical Backscatter Reflectometry (OBR).
References
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Fiber Bragg gratings
TL;DR: The most common fabrication techniques (interferometric, phase mask, and point by point) are examined in detail with reference to the advantages and disadvantages in utilizing them for inscribing Bragg gratings as mentioned in this paper.
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Experimental verification of response of embedded optical fiber Bragg grating sensors in non-homogeneous strain fields
TL;DR: In this article, an experimental verification of the response of an embedded optical fiber Bragg grating (OFBG) to applied nonhomogeneous strain fields is presented, and the results are compared with analytical calculations, based on the piecewise-uniform period assumption for chirped gratings.
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Structural health monitoring of marine composite structural joints using embedded fiber Bragg grating strain sensors
TL;DR: In this article, a finite element (FE) model was developed to correlate experimental strain measurements prior to cyclic loading with the numerical predictions and to determine the sensitivity of the sensors to changes in longitudinal strain due to crack growth.
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Optical fibre sensors for health monitoring of bonded repair systems
TL;DR: In this paper, an array of fiber Bragg grating strain sensors (FBGs) were used for the in situ monitoring of bonded repairs to aircraft structures and, in particular, the monitoring of crack propagation beneath a repair.
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Disbond growth detection in composite-composite single-lap joints using chirped FBG sensors
J. Palaniappan,Stephen L. Ogin,A.M. Thorne,Graham T. Reed,A.D. Crocombe,T.F. Capell,Swee Chuan Tjin,Lipi Mohanty +7 more
TL;DR: In this article, a single chirped fibre Bragg grating (CFBG) sensor embedded within one composite adherend was used to locate the position of the disbond front.