Geometry effect on the behaviour of single and glue-laminated glass fibre reinforced polymer composite sandwich beams loaded in four-point bending |
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| Affiliation: | 1. Innovative Manufacturing Research Centre, Kunming University of Science and Technology, Kunming, 650500, People’s Republic of China;2. Centre for Efficiency and Performance Engineering, University of Huddersfield, Queensgate, Huddersfield, HD1 3DH, UK;1. Dept. of Civil Engg., VNR Vignanajyothi Institute of Engineering and Technology, Hyderabad 500090, India;2. Dept. of Civil Engg., National Engineering College, K.R. Nagar, Kovilpatti, Tamil Nadu, India |
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| Abstract: | The research investigated the behaviour of single and glue laminated glass fibre reinforced polymer (GFRP) composite sandwich beams considering different spans and beam cross sections. The composite sandwich beams with different thicknesses (1, 2, 3, 4, and 5 sandwich layers) have been tested in four-point static flexural test with different shear span to depth ratio (a/d). The a/d ratios showed a direct effect on the flexural and shear behaviour. The capacity of the beam decreased with increasing a/d. Various failure modes were observed including core crushing, core shear, and top skin compression failure. The failure mode map developed based on the experimental finding and analytical prediction indicated that the failure mode is affected by the a/d with the number of glue laminated panels. |
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