Comparison between laminated and integrated glass fibre reinforced plastics

Glass fibre reinforced honeycomb-like cores (I beam and T beam) with laminated and integrated structures were processed. They were tested for strength, and various analyses were carried out. Conventional glass fibre reinforced plastics are obtained by laminating two-dimensional fabrics with added resin. The material is liable to be broken or peeled apart between adjacent layers under repeated imposition of stress and repeated heat cycles of high and low temperature. To improve the performance of glass fibre reinforced plastics, three-dimensional preforms are needed. In this research, integrated preforms for honeycomb-like cores (I beam and T beam) were processed and their respective composites were made. For comparison, corresponding laminated composites by using two-dimensional fabrics were also obtained. The strength was measured and results were analysed.