| People | Locations | Statistics |
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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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Fernando, Gerard
University of Birmingham
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (22/22 displayed)
- 2023Effects of NaOH treatment and NaOH treatment conditions on the mechanical properties of coir fibres for use in composites manufacturecitations
- 2023Simultaneous multi-measurand analyses of cross-linking reactions within a differential scanning calorimeter using optical fibre sensorscitations
- 2023Single-Solvent Fractionation and Electro-Spinning Neat Softwood Kraft Lignincitations
- 2022Monitoring Cross-Linking, the Evolution of Refractive Index and the Glass Transition Temperature of an Epoxy Resin Using an Optical Fiber Sensorcitations
- 2021Vertically-aligned short E-glass fibre core sandwich composite: Production and evaluationcitations
- 2021Improved procedure for electro-spinning and carbonisation of neat solvent-fractionated softwood Kraft lignincitations
- 2016Monitoring pre-stressed composites using optical fibre sensorscitations
- 2016In-situ monitoring of cross-linking reactions using E-glass fibres and evanescent wave spectroscopycitations
- 2014Multi-point monitoring of cross-linking reactionscitations
- 2012Lateral spreading of a fiber bundle via mechanical meanscitations
- 2011Synthesis of Ag/AgCl-mesoporous silica nanocomposites using a simple aqueous solution-based chemical method and a study of their antibacterial activity on E. colicitations
- 2010Evaluation of Embedded Optical Fiber Composites: EFPI Sensor Response to Sensors in Fatigue Loadingcitations
- 2009In-situ damage detection using self-sensing compositescitations
- 2009Evaluation of embedded optical fiber sensors in composites: EFPI sensor fabrication and quasi-static evaluationcitations
- 2009A comparison of cure monitoring techniquescitations
- 2008A novel fibre optic acoustic emission sensorcitations
- 2008Chemical process monitoring and the detection of moisture ingress in composites - art. no. 69330R
- 2007Smart materials and systems
- 2007Fabrication of intrinsic fibre Fabry–Perot sensors in silica fibres using hydrofluoric acid etchingcitations
- 2006Process monitoring of fibre reinforced composites using optical fibre sensorscitations
- 2006Investigation of reversible photo-mechanical properties of azobenzene-based polymer films by nano-indentationcitations
- 2002A Method To Measure The Interfacial Shear Stress For Optical Fibres Embedded In Fibre Reinforced Composites
Places of action
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article
Multi-point monitoring of cross-linking reactions
Abstract
The feasibility of deploying optical fiber sensors to obtain qualitative and quantitative information on the cross-linking characteristics of thermosetting resin systems has been demonstrated by a number of researchers. This article is concerned with the demonstration of a low-cost fiber-optic Fresnel sensor system for monitoring the cross-linking reactions at multiple locations. Cross-linking reactions can be influenced by a number of parameters including the stoichiometry of the resin and hardener, and the heat-transfer rates in and out of the preform as a function of the cross-section of the preform. In situations where there is a variation in the thickness of the preform or when large components are processed, a facility to monitor the cross-linking reactions at multiple locations will be valuable because the rate and extent of the cross-linking can be inferred. In this article, six Fresnel sensors were immersed in individual vials containing an epoxy/amine resin system and processed (cross-linked) in an air-circulating oven. One additional vial with a Fresnel sensor immersed in the neat epoxy resin (no hardener) was co-located in the oven to enable the effect of temperature to be monitored. The feasibility of using the multiplexed Fresnel sensors for cure monitoring was demonstrated successfully. The sensors in the post-cross-linked samples were used to study the effects of heating and cooling cycles. The feasibility of detecting the glass transition temperature using the Fresnel sensor is discussed along with the factors that give rise to variability in the output Fresnel signals. © 2014 The Authors. Journal of Applied Polymer Science Published by Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2014, 131, 41088.