考察了一种由湿法缠绕工艺制备的碳纤维薄壁圆筒的轴向拉伸性能。该圆筒由高模碳纤维螺旋缠绕层和高强碳纤维环向缠绕层构成。采用结构分解的方法,分别测试了每种铺层结构复合材料的轴向拉伸性能,再对由这两种铺层结构组成的碳筒整体进行轴向拉伸测试,结合两种单一铺层结构复合材料的性能对圆筒轴向拉伸的失效模式进行了分析。实验结果显示,该种结构圆筒复合材料轴向拉伸时,环向层复合材料首先发生破坏,其轴向拉伸模量主要取决于螺旋层碳纤维复合材料的轴向模量。对环向缠绕层分别采用两种不同碳纤维S和Z的圆筒进行了轴向拉伸性能测试,得到两者的轴向拉伸强度分别约为470MPa和600MPa,模量均约为90GPa。

The axial direction mechanical properties of the FW composite cylinders with different CFRP layers were researched.The structure decomposition method was used,while the composite cylinders with only circular layers and only angle-ply layers were tested respectively.The axial direction mechanical properties of composite cylinders with both of these two kinds of layers structure were tested.The test result of composites with single layers and the failure mode were analyzed,and the rationality of the method with small pipe sample model was proved.It was showed that the axial tensile strength of the rotor composites was determined by the adhesive strength of carbon fiber composites of circular layers,and the axial modulus was determined by the carbon fibers composites of spiral layers.The axial direction mechanical properties of rotor composites made of carbon fiber S and Z were tested respectively.The axial tensile strength of the rotor composites was:470MPa and 600MPa respectively,the modulus of them were all about 90GPa.