Abstract
The paper presents analyses of fibre reinforced polymer (FRP) samples with embedded fibre Bragg grating (FBG) sensors. As a reinforcement glass or carbon fibres in a form of textiles with different grammage and bundles fibre arrangement were used. All samples were manufactured using infusion method. FBG sensors are applied for analyses of strain distribution inside sample due to static point loads. Samples internal structures were analysed using THz spectroscopy. Analyses of possibility of detection and localisation of fibre optics lying under textile or embedded into carbon/glass FRP are performed. For carbon FRP the maximal depth of inspection is determined. The THz wave propagation depth depends on conductive carbon fibres arrangement in non-conductive resin matrix.
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