Study on Tensile Properties of Glass Fiber-Wire Mesh Reinforced Composites
10 kinds of composite material specimens with different wire diameters and hole spacing were prepared by bidirectional braided glass fiber and rectangular stainless steel wire mesh by vacuum assisted resin injection molding(VARI)process.The effects of different wire mesh parameters on the tensile proper-ties of the composites were studied,and the failure mechanism was revealed by digital image correlation technique.The results show that the deformation of the material is constrained by the steel wire mesh at the initial stage of tension.With the increase of load,the specimen is divided into more strain units by the steel wire mesh.Finally,the relative slip of the steel wire mesh and the fiber occurs,and the fiber breaks on one side and tears rapidly to the other side,resulting in the failure of the specimen.The introduction of wire mesh significantly improves the stiffness,peak load and ultimate strain of glass fiber-wire mesh reinforced composites.Compared with the specimens without wire mesh,the maximum limit load increases by 61.18%and the maximum displacement increases by 37.17%.In addition,the wire mesh shows good ductility in the specimens.
万方数据
维普
