Dynamic compressive behaviour of unidirectional GFRP for various fibre orientations |
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| Affiliation: | 1. CEA, LITEN, Grenoble 38054, France;2. Université de Lille, CNRS UMR 8181, Unité de Catalyse et de Chimie du Solide (UCCS), ENSCL, Lille F-59000, France;3. Université Lyon 1, CNRS, UMR 5256, IRCELYON, Institut de Recherches sur la Catalyse et l''Environnement de Lyon, 2 avenue Albert Einstein, Villeurbanne 69626, France;4. Universidad Industrial de Santander, Grupo INTERFASE, Ciudad universitaria, Calle 9, Carrera 27, Bucaramanga (Santander), Colombia |
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| Abstract: | The dynamic stress-strain behaviour of unidirectional glass-epoxy composite has been studied at an average strain rate of 265 s−1 for fibre orientations of 0°, 10°, 30°, 45°, 60° and 90° with respect to loading axis, using the Kolsky pressure bars technique. GFRP (glass fibre reinforced plastic) is found to be strain rate sensitive for all fibre orientations. Compared to quasi-static, the dynamic ultimate strength increases almost 100% for 0°, 80% for 10° fibre orientations and about 45% for all other orientations. Failure occurs predominantly by tensile splitting in 0° specimens and by shear for all other orientations preserving the fibre direction in each case. |
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