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Naji, M. |
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Motta, Antonella |
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Aletan, Dirar |
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Mohamed, Tarek |
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Ertürk, Emre |
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Taccardi, Nicola |
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Kononenko, Denys |
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Petrov, R. H. | Madrid |
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Alshaaer, Mazen | Brussels |
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Bih, L. |
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Casati, R. |
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Muller, Hermance |
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Kočí, Jan | Prague |
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Šuljagić, Marija |
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Kalteremidou, Kalliopi-Artemi | Brussels |
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Azam, Siraj |
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Ospanova, Alyiya |
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Blanpain, Bart |
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Ali, M. A. |
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Popa, V. |
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Rančić, M. |
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Ollier, Nadège |
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Azevedo, Nuno Monteiro |
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Landes, Michael |
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Rignanese, Gian-Marco |
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Santos, Jl
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (42/42 displayed)
- 2022Optical Strain Gauge Prototype Based on a High Sensitivity Balloon-like Interferometer and Additive Manufacturingcitations
- 2021Experimental investigation of a strain gauge sensor based on Fiber Bragg Grating for diameter measurementcitations
- 2019FUNCTIONAL METAMATERIALS FOR OPTICAL SENSING OF HYDROGEN
- 2018Temperature Compensated Strain Sensor Based on Long-Period Gratings and Microspherescitations
- 2017Fabry-Perot interferometer based on array of microspheres for temperature sensing
- 2016Characterization of zinc oxide coated optical fiber long period gratings with improved refractive index sensing propertiescitations
- 2016Zinc oxide coated optical fiber long period gratings for sensing of volatile organic compoundscitations
- 2016Fabrication and Characterization of Metal Oxide-Coated Long-Period Fiber Gratingscitations
- 2015Sensing Structure Based on Surface Plasmon Resonance in Chemically Etched Single Mode Optical Fibrescitations
- 2014Multiparameter measurement using a double-Y-shaped suspendedcore fiber in a fiber loop configuration
- 2014Post-processing fibers for sensing applications
- 2014Enhanced refractive index sensing characteristics of optical fibre long period grating coated with titanium dioxide thin filmscitations
- 2013New design for temperature-strain discrimination using fiber Bragg gratings embedded in laminated compositescitations
- 2013Next generation of Fabry-Perot sensors for high-temperaturecitations
- 2013Sensing Structure based on Surface Plasmonic Resonance in Single Mode Optical Fibers Chemically Etchedcitations
- 2013Microcavity Tip Temperature Sensor based on Post-Processing
- 2013Post-Processing of Fabry-Perot Microcavity Tip Sensorcitations
- 2012Simultaneous Measurement of Partial Pressure of O-2 and CO2 using Hybrid interferometer
- 2012Intrinsic Fabry-Perot Cavity Sensor Based on Etched Multimode Graded Index Fiber for Strain and Temperature Measurementcitations
- 2012Towards the control of highly sensitive Fabry-Perot strain sensor based on hollow-core ring photonic crystal fibercitations
- 2012Simultaneous measurement of partial pressure of O-2 and CO2 with a hybrid interferometercitations
- 2012Fabry-Perot cavities based on chemical etching for high temperature and strain measurementcitations
- 2011Optical Fibre Hydrogen Sensors Based on Palladium Coatings
- 2011Fabry-Perot cavities based on chemical etching for high temperature and strain sensingcitations
- 2010Fibre Optic Hot-Wire Flowmeter Based on a Metallic Coated Hybrid LPG-FBG Structurecitations
- 2010Splicing and coupling losses in hollow-core photonic crystal glass fiberscitations
- 2010Fibre Bragg grating sensors for monitoring the metal inert gas and friction stir welding processescitations
- 2009Osteogenic differentiation of mesenchymal stem cells using PAMAM dendrimers as gene delivery vectorscitations
- 2009Effect of fiber tapering in LPG-based Mach-Zehnder modal interferometers for refractive-index sensingcitations
- 2009Modal Interferometer Based on ARROW Fiber for Strain and Temperature Measurementcitations
- 2009Geometrical effects on the refractive index sensitivity of Mach-Zehnder fibre modal interferometers based on long-period gratingscitations
- 2008High birefringence D-type fibre loop mirror used as refractometercitations
- 2008Modal LPG-based Mach-Zehnder interferometer with controlled sensitivity for refractive index measurement
- 2007Recent advances in high-birefringence fiber loop mirror sensorscitations
- 2007Temperature field acquisition during gas metal arc welding using thermocouples, thermography and fibre Bragg grating sensorscitations
- 2007Birefringence monitoring of a Hi-Bi fibre under chemical etching through a fibre loop mirrorcitations
- 2006Development of an optic fibre sensor system for acoustic emission sensing in FRP
- 2005Strain and temperature discrimination using a Hi-Bi grating partially exposed to chemical etchingcitations
- 2005Arc-induced long-period gratings in aluminosilicate glass fiberscitations
- 2004Fiber Bragg grating sensing system for simultaneous measurement of salinity and temperaturecitations
- 2003Load cell for structural monitoring based on a microbend self-referenced fiber optic intensity sensor
- 2002Optical fiber interferometer for measuring the d(33) coefficient of piezoelectric thin films with compensation of substrate bendingcitations
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article
Fibre Bragg grating sensors for monitoring the metal inert gas and friction stir welding processes
Abstract
Fibre Bragg grating (FBG) sensors are finding increased usage in experimental mechanics for monitoring service conditions in structures and other equipment and are currently being tested for process monitoring. In FBG sensors, strain and temperature cause a shift in the Bragg wavelength reflected by the grating contained in these fibres. In situ monitoring of strain and temperature during welding processes increases knowledge of the welded material and the welding process itself. In the present work, two welding processes are monitored using FBG sensors and the complete measurement approach including sensor selection, calibration, instrumentation, welding monitoring and result interpretation is presented. Calibration for strain measurements at constant temperature was performed using a four-point bending test, and temperature calibration was carried out using an oven. Results for a sensor length of 5 mm are presented. Both transient and residual strains were recorded during experiments on metal inert gas and friction stir welding and the possible impact of this monitoring technology is discussed in the light of process optimization and subsequent structural health monitoring.