Quantitative measurement of filament ruptures of a multi-filament AR-glass yarn embedded in concrete

摘要: This paper presents a new digital image analysis method for quantitative and online measurement of filament ruptures multi-filament AR-glass yarn embedded in concrete during pullout loading. The proposed was developed based on an existing test determination occurring the loading called failure investigation using light transmitting (FILT) property test, which uses fibers. Artificial is exposed glass filaments from one side specimen. On opposite side, charge-coupled device (CCD) camera with optical microscope records lighted cross-sections yarn. To detect loading, intensity time history every individual investigated by method. number broken also acoustic emission (AE) simultaneously results were compared. Test showed that can be used to identify it possible determine cross-section quantitatively improved FILT test.