Effect of displacement rate and additive materials on the mechanical performance of 3D glass composite laminates

Abstract

This study investigates the mechanical properties and failures characteristics of three-dimensional glass laminates that have different contents of graphene nanoparticles. The experimental three-dimensional glass laminates, both without graphene nanoparticles and with 1%, 1.2%, and 2% graphene nanoparticles, were manufactured, and their tensile properties were investigated at different tensile displacement rates of 0.5, 1, and 1.5 mm/minute, respectively. The flexural properties of these samples with different contents of graphene nanoparticles were also evaluated using flexural strength tests. Results indicate that the tensile strength is significantly enhanced when 1% and 1.2% graphene nanoparticles were added. In addition, high displacement loading rates have strongly affected the tensile strength of three-dimensional glass composite laminates. Mixing of nanoparticles and high strain rates has significantly improved the tensile strength. Furthermore, when 1% graphene nanoparticles has been added, the tensile strength increased up to 78%, 77%, and 76% under 0.5, 1, and 1.5 mm/minute displacement rates, respectively. Results show that mixing 1% and 1.2% of graphene nanoparticles with three-dimensional glass laminates can enhance flexural strength by 10% and 2%, respectively, compared to three-dimensional glass fabric composite laminates without nanoparticles. A significant reduction in the flexural strength of these laminates could occur after the addition of 2% graphene nanoparticles.