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11 August 2011 Non-destructive examination of epoxy glass composites using time domain reflection setup
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Abstract
We report on analysis of epoxy composite reinforced with a glass fiber mat by means of Time Domain Spectroscopy (TDS) technique in reflection way. The samples consisted of 2 or 3 layers with the beveling angle of the layers equal to 90° and thickness up to 2 mm. Two samples with artificially induced air-bubbles (~1-2 mm in diameter) and a sample which consisted of the 2 layers of epoxy and a layer of an air-bubble foil between them were also investigated. The measurements shown that all layers as well as defects can be identified.
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Norbert Palka, Danuta Miedzinska, Hubert Oblocki, and Robert Panowicz "Non-destructive examination of epoxy glass composites using time domain reflection setup", Proc. SPIE 8195, International Symposium on Photoelectronic Detection and Imaging 2011: Terahertz Wave Technologies and Applications, 81951G (11 August 2011); https://doi.org/10.1117/12.900860
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