The triaxial woven fabric is known for their light weight and isotropy of mechanical properties. However, researches that using it as reinforcement to form different structural composites were rarely mentioned. Here, we found that the effect of the triaxial woven fabric can be almost equivalent to the unidirectional fabric in flexural strength (99.18%) when it was added as a reinforcing material into the unidirectional fabric composites even though the weight of triaxial woven fabric has only a third of unidirectional fabric. Moreover, the effects and mechanisms are quite different when changing the position of the triaxial woven fabric in the composites. The damage modes of composites when triaxial woven fabric in different stacking sequences were summarized and the resin blocks model from triaxial woven fabric composites was presented in this paper.

三轴机织物以其重量轻和机械性能各向同性而著称。然而，将其作为增强材料形成不同结构复合材料的研究却鲜有提及。在这里，我们发现当三轴织物作为增强材料添加到单向织物复合材料中时，三轴织物的抗弯强度几乎与单向织物相当（99.18%），尽管三轴织物的重量仅为三分之一的单向织物。此外，改变三轴机织物在复合材料中的位置，其作用和机制也大不相同。