Design and trial-weaving of multi-layer reinforcement fabric with superimposed warps

To optimize the multi-layer woven structure for improving the bulk density of fiber reinforcement,strength and modulus,a new multi-layer woven structure was researched —inter-layer warp connecting multi-layer fabric structure.The layers connected by superimposed warp running through various sub-layers,fabricating laminated fabrics with integral multi-layer structure.The paper described the principle of weaving,designed the special heddle and heald frame and weaving movement,and produced the multi-layer woven fabric with self-made weaving machine.Research shows that compared with traditional multi-layer structure,the fabric is closer and the degree of fiber bending lower because of the stacked structure in the result of a higher fiber volume density and tensile modulus,also the surface damage spreading along the thickness direction is lessened.