利用材料试验机和具有高温同步加载能力的分离式霍普金森压杆装置，研究了三维编织碳/碳复合材料在室温（25 ℃）准静态和25~900 ℃时的动态压缩力学性能。实验结果表明，复合材料强度受纤维取向、应变率和温度三个因素的影响。在相同的应变率和温度下，复合材料Z向强度均大于XY向强度。随着应变率增加，复合材料XY向和Z向强度均增加，表现出正的应变率效应。随着温度从室温增加到900 ℃，复合材料XY向和Z向强度均先增加，在600 ℃时达到最大值，随后强度开始下降。静动态加载下，XY向复合材料均发生剪切失效，但动态剪切断裂角小于准静态情况。随着应变率增加，Z向复合材料断裂模式从剪切失效转变为基体压碎和部分纤维折断。

This study investigates the dynamic compressive mechanical properties of three-dimensional woven carbon/carbon composites under both room temperature（25 ℃） quasi-static and from 25 ℃ to 900 ℃ dynamic compression conditions using both a materials testing machine and a split Hopkinson press bar device equipped for simultaneous high-temperature loading. The experimental results reveal that the strength of the composites is influenced by three key factors： fiber orientation， strain rate， and temperature. Specifically， under consistent strain rates and temperatures， the composites exhibit higher strength in the Z-direction compared to the XY-direction. As the strain rate escalates， the strengths of the composites in both the XY-direction and Z-direction increase， indicating a positive correlation with the strain rate. Upon heating from room temperature to 900 ℃， the strengths of both XY-direction and Z-direction composites initially rise， peaking at 600 ℃， and then gradually decline. Under both static and dynamic loading conditions， XY-direction composites undergo shear failure， albeit with a smaller shear fracture angle in the dynamic case compared to the quasi-static scenario. An increase in the strain rate results in a transition in the fracture mode of Z-direction composites， shifting from shear failure to a combination of matrix crushing and partial fiber fracture.