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Monitoring strain gradients in adhesive composite joints by embedding fibre Bragg grating sensors
Canal Casado,Luis Pablo,Behzad Dehghan Manshadi,Véronique Michaud,Ioannis Botsis,Georgios Violakis,Hans G. Limberger +6 more
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TLDR
In this article, a fiber Bragg grating grating was used for optical fiber sensor and composite joints to detect optical fiber in optical fiber sensors and optical fiber is used for composite joints.Abstract:
Keywords: Fiber Bragg grating ; optical fiber sensor ; composite joints Reference EPFL-CONF-183849 Record created on 2013-02-18, modified on 2016-08-09read more
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Testing mechanical performance of adhesively bonded composite joints in engineering applications: an overview
Michal K. Budzik,Markus Wolfahrt,Paulo N.B. Reis,Marcin Kozłowski,José Sena-Cruz,Loucas Papadakis,Mohamed Nasr Saleh,Klára Machalická,Sofia Teixeira de Freitas,Anastasios P. Vassilopoulos +9 more
TL;DR: In this article, the authors present the commonly used experimental methods for the investigation of mechanical performance of adhesively bonded joints in the aerospace, wind energy, automotive and civil engineering sectors.
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Moisture contamination detection in adhesive bond using embedded FBG sensors
TL;DR: In this article, an application of embedded fiber Bragg grating (FBG) sensors for moisture contamination detection in an adhesive bond between two composite elements is presented, which can be used for detection of even a small amount of moisture concentration (1-3% of sample weight).
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Numerical modeling of laser-induced shock experiments for the development of the adhesion test for bonded composite materials
TL;DR: In this paper, the authors developed a reliable numerical model to be used for the laser shock wave adhesion test of bonded composites, which enables to understand the stress distribution within the composite assembly during the wave propagation.
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A monitoring technique for disbond area in carbon fiber–reinforced polymer bonded joints using embedded fiber Bragg grating sensors: Development and experimental validation:
TL;DR: In this paper, the authors evaluated fatigue-induced disbond areas in carbon fiber-reinforced polymer double-lap joints using embedded fiber Bragg grating sensors, and the relationship between the peak intensity ratio and the length was analyzed by coupled structural-optical analysis.
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Deformation and interlaminar crack propagation sensing in carbon fiber composites using electrical resistance measurement
TL;DR: In this paper, the authors proposed analytical and experimental methods to predict and detect deformation and interlaminar crack propagation in carbon fiber-reinforced plastics (CFRPs) based on electrical resistance measurement.
References
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Fiber Bragg grating technology fundamentals and overview
K.O. Hill,G. Meltz +1 more
TL;DR: Fiber Bragg grating (FBG) technology has been extensively studied in the literature as mentioned in this paper, where the basic techniques for fiber grating fabrication, their characteristics, and the fundamental properties of fiber gratings are described.
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Photoelastic Properties of Selected Materials and Their Relevance for Applications to Acoustic Light Modulators and Scanners
TL;DR: In this paper, the photoelastic tensor components and figures of merit of several materials selected for possible application in acoustic light modulators and scanners are presented, and the most important results are that GaP is superior to fused quartz by nearly two orders of magnitude for modulation and scanning of visible light of wavelength longer than 0.58 μ.
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Photoelastic Constants of Vitreous Silica and Its Elastic Coefficient of Refractive Index
William Primak,Daniel Post +1 more
TL;DR: The photoelastic constants and their dispersion for visible light were determined for two samples of vitreous silica, Corning and Herasil No. 1, and the results for the mercury green line, 546 mμ, are quoted here as mentioned in this paper.
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Delamination detection and characterisation of bridging tractions using long FBG optical sensors
TL;DR: In this paper, the authors measured non-uniform strains due to the propagation of mode-I delamination and identification of bridging tractions in double cantilever beam (DCB) composite specimens made of uniaxially reinforced AS4/PPS.
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Bragg grating characterization by optical low-coherence reflectometry
TL;DR: Optical low-coherence reflectometry is used for the first time to investigate distributed feedback structures within a single-mode fiber as discussed by the authors, which allows the location, the length, and the coupling coefficient of the grating to be determined precisely.