000160783 001__ 160783
000160783 005__ 20181203022215.0
000160783 0247_ $$2doi$$a10.1016/j.compositesa.2008.04.010
000160783 02470 $$2ISI$$a000257838100006
000160783 037__ $$aARTICLE
000160783 245__ $$aMonitoring of process induced strains in a single fibre composite using FBG sensor: A methodological study
000160783 269__ $$a2008
000160783 260__ $$c2008
000160783 336__ $$aJournal Articles
000160783 520__ $$aA partially embedded long fibre-Bragg grating (FBG) into an epoxy cylindrical specimen is used to monitor the strain distribution evolution along its axis when subjected to subsequent cycles of thermal ageing at 70 and 110 degrees C. Assuming a total volume reduction of 2.5% at full cure, the epoxy conversion at the end of the thermal cycles was found similar to 85%. Using strain data from the FBG, the coefficient of thermal expansion was evaluated as similar to 11.5 x 10(-5) C-1. Based on the strain data from the FBG, numerical simulations of an equivalent thermo-elastic matrix were performed to obtain the residual stresses in the specimen at the end of the thermal cycles. The results demonstrate the capability of FBG sensors in providing important information on the degree of cure and evolution of fabrication induced strains inside the epoxy. (C) 2008 Elsevier Ltd. All rights reserved.
000160783 6531_ $$athermosetting resin
000160783 6531_ $$aresidual/internal stress
000160783 6531_ $$afinite element analysis (FEA)
000160783 6531_ $$aprocess monitoring
000160783 6531_ $$aGlass Fiber/Epoxy Composites
000160783 6531_ $$aResidual-Stresses
000160783 6531_ $$aCure Shrinkage
000160783 6531_ $$aEpoxy-Resin
000160783 6531_ $$aBragg Gratings
000160783 6531_ $$aOptic Sensors
000160783 6531_ $$aTemperature
000160783 700__ $$aKaralekas, D.
000160783 700__ $$0240759$$aCugnoni, J.$$g100957
000160783 700__ $$0243281$$aBotsis, J.$$g111182
000160783 773__ $$j39$$q1118-1127$$tComposites Part A-Applied Science And Manufacturing
000160783 909C0 $$0252171$$pLMAF$$xU10367
000160783 909CO $$ooai:infoscience.tind.io:160783$$pSTI$$particle
000160783 917Z8 $$xWOS-2010-11-30
000160783 917Z8 $$x111182
000160783 937__ $$aEPFL-ARTICLE-160783
000160783 973__ $$aEPFL$$rREVIEWED$$sPUBLISHED
000160783 980__ $$aARTICLE