关键词: 2.5D机织物, 复合材料, 力学性能, 浅交弯联, 浅交直联, 深交联

Abstract:

In this paper,three typical 2.5D woven fabrics were designed and experimental samples met the requirements were made.The main mechanical properties in warp and weft direction of the composites were obtained by tensile,compression,double lap shear,and then the relationship between structure and properties were analyzed.Some useful conclusions were got.The conclusion indicates that the properties of composites,including tensile,compressive and shear strength, which are mainly decided in yarn inclination angle and fiber volumetric content.The properties of composites with the same layers manifests that the deep crossing linking are  bigger than the straight shallowcrossing linking,which are bigger than the curved ones.