The application of carbon fiber/epoxy composites places more requirements on the selection of fabrics to meet the needs of structural components. Due to the large design space for reinforced fabric patterns, the relationship between the reinforcements and properties is essential to further understand. Four typical fabrics were manufactured in this research, named non-interlaced bidirectional fabrics, plain weave laminated fabrics, angle-interlock fabrics and bidirectional angle-interlock fabrics. The structural features of fabrics were analyzed by using representative geometric unit, and the symmetry properties were discussed based on group theory. Vacuum assistant resin transfer molding was adopted to obtain the corresponding resin matrix composite specimens. Quasi-static tensile and bending tests were conducted on these specimens. The stress-strain curves of specimens were illustrated, and the failure characterizations were also analyzed in mesoscopic scale. The results showed that the high crimp of yarns reduced the stability of composites. Both the tensile and flexural properties were affected by the curvature of yarns. The research results provided a theoretical basis for the selection of fabric structure and the application of carbon fiber/epoxy composites.

碳纤维/环氧树脂复合材料的应用对织物的选择提出了更高的要求，以满足结构组件的需求。由于增强织物图案的设计空间很大，因此增强材料和性能之间的关系对于进一步理解至关重要。本研究生产了四种典型的织物，分别是非交错双向织物，平纹层压织物，角互锁织物和双向角互锁织物。利用代表性的几何单元分析了织物的结构特征，并基于群论讨论了织物的对称性。采用真空辅助树脂传递模塑法获得相应的树脂基复合材料试样。在这些样品上进行了准静态拉伸和弯曲测试。绘制了试样的应力-应变曲线，并在介观尺度上分析了失效特征。结果表明，高卷曲度降低了复合材料的稳定性。拉伸性能和弯曲性能都受纱线曲率的影响。研究结果为织物结构的选择和碳纤维/环氧复合材料的应用提供了理论依据。