A Novel Fiber Reinforced Composite Tube Imitated Inter-Node Structure Of Bamboo Fabricated By Filament Winding

Biomaterials in nature, based on the evolution of years, have good adaptability in performance and structure. Bamboo, one of the strongest natural structural materials, has many distinguishing features. It has been found that its reinforcement unit, the inter-node, plays an extremely important role in its mechanical properties. Here we demonstrate a novel composite tube imitated inter-node structure of bamboo, prepared by filament winding.Epoxy resin and glass fiber was chosen respectively as resin matrix and reinforcement fiber. We use nylon slice as Inter-node because of its high modulus and strong strength. This novel composite tube imitated inter-node structure of bamboo was obtained after winding and removing from mould. Some different samples were prepared by changing the fiber winding mode, the distance among slices and so on. The stress and strain in the different parts of the composite tube were researched by the electrometric method; The effect of the different factors on the stiffness of the composite tube were studied by cantilever beam method; The breaking strength of the tube was tested by Three Points Loading Flexure and strength test methods.The results showed that compared with the common FRP tubes, the mechanics of the tube reinforced by nylon slices were improved greatly, especially in stiffness and strength. In addition, the fiber winding mode, the distance among slices both had remarkable influence on the mechanical property of the tube.The results of experiment showed that the method was feasible. This novel composite tube can be used to correlative industry.