界面层对纤维增韧陶瓷基复合材料力学性能影响的研究进展

以短切碳纤维增韧陶瓷基复合材料、连续碳纤维增韧陶瓷基复合材料、碳化硅纤维增韧陶瓷基复合材料为对象,综述了近年来关于界面层对FTCMCs破坏模式影响的实验研究工作。从微观力学模型建立、多尺度损伤分析两方面总结归纳了考虑界面层的FTCMCs力学性能模拟分析方法,提出建立切合实际的物理模型以及开发更先进的多尺度分析方法,是解决复杂服役环境下FTCMCs性能表征难题的有效途径。通过多场耦合多尺度建模分析方法来表征和优化FTCMCs的复杂服役环境下性能,系统揭示界面层等微观结构与宏观复合材料性能的对应关系,进而指导工艺设计,均是未来纤维增韧陶瓷基复合材料界面层的重点研究方向。

Effect of Interfacial Layer on Mechanical Properties of Fiber Toughened Ceramic Matrix Composites

With ceramic matrix composites toughened with short carbon fiber, continuous carbon fiber and silicon carbide fiber as the objects, the experiment studies on the influences of interface layer on the failure mode of FTCMCs in recent years were reviewed. From the building of microscopic, mechanics model and analysis on multi-scale damage, mechanical property simulation and analysis methods for FTCMCs on the interface layer were summarized The establishment of practical physical model and the development of more advanced multi-scale analysis method were proposed to solve the complex performance characterization problem of FTCMCs under service environment in an effective way. The performance of FTCMCs in complex service environment was characterized and optimized through the multi-field coupling and multi-scale modeling analysis method to systematically reveal the corresponding relationship between the microstructure of interface layer and the performance of macro composites, to further guide the process design. All is the key research direction for future fiber toughened ceramic matrix composites interface layer.