Flexural and impact behavior of bamboo-bundle based laminated composites

Abstract

The objective of this study was to test the effect of four different staking sequences on the mechanical properties and the low viscosity impact behavior of bamboo bundle-based composites. Two different laminate staking structures were used to make the bamboo bundle veneers. The samples were labeled A through D. The density and mechanical properties of the samples, including the modulus of elasticity (MOE), the modulus of rupture (MOR), and the impact bending strength (IBS), were studied under parallel and perpendicular loading to the glue line. Three different impact energies of 50, 95, and 145 J were used to examine the impact response and failure mechanisms of the samples under low-velocity impact. The MOE and MOR values of the type A and type D laminates under both perpendicular and parallel loading to the glue line were found to be insignificant. The IBS values of the type A laminate under perpendicular and parallel loading to the glue line were higher than the values of the other composites. Among the configurations that were investigated in this study, the type D composite exhibited the best impact response and its total energy absorbed was much higher than the other samples.