The influence of temperature, braiding angle, and braided structure on compressive mechanical properties and failure mechanisms of three-dimensional six-directional braided composites (3D6DBCs) were comprehensively analyzed. At low temperature, the out-of-plane and transverse strength increased by 16.2% and 50.1%, respectively. Interfacial damage caused a 25.3% decrease in longitudinal strength. The increase in braiding angle leads to a decrease in longitudinal and transverse strengths. At room temperature, the failure of the yarn-matrix interface and the deformation of the composites are the main reasons for the failure of 3D6DBCs. At low temperature, 3D6DBCs exhibits brittle fracture and shear failure modes. The braiding angle affects the deformation of 3D6DBCs. The composites with different braided structures have significant property differences. The addition of axial and transverse yarns significantly improves the longitudinal and transverse properties of 3D6DBCs.

综合分析了温度、编织角度、编织结构对三维六向编织复合材料（3D6DBCs）压缩力学性能和失效机理的影响。在低温下，面外强度和横向强度分别提高了16.2%和50.1%。界面损伤导致纵向强度降低 25.3%。编织角的增加导致纵向和横向强度的降低。在室温下，纱线-基体界面的失效和复合材料的变形是 3D6DBCs 失效的主要原因。在低温下，3D6DBCs 表现出脆性断裂和剪切破坏模式。编织角度影响 3D6DBC 的变形。不同编织结构的复合材料具有显着的性能差异。轴向和横向纱线的添加显着改善了 3D6DBC 的纵向和横向性能。