针对预成型-压实过程中碳纤维编织热固性复合材料受到多场耦合和大变形的共同作用，使其力学行为复杂，导致变形难以精准预测的问题，本项目开展碳纤维编织热固性复合材料预成型-压实过程的多场耦合力学行为研究并建立高精度一体化分析模型。首先，研究编织热固性复合材料预成型中的高温力学行为，探明其宏观等效导热系数随材料面内剪切变形的演变规律；其次，建立编织热固性复合材料各向异性热粘-超弹性本构模型，构建宏观等效导热系数动态演变的完全热-力耦合预成型模型；再次，研究压实过程中编织热固性复合材料纤维增强体的粘弹性力学行为和树脂流动行为，揭示纤维束角、纤维体积系数对纤维增强体饱和渗透率的影响机制，建立渗透率-温度非均匀分布的流-热-固耦合压实模型；最后，构建预成型-压实一体化模型并开展典型复合材料曲面结构验证，为碳纤维编织热固性复合材料成型制造提供高精度的预测方法和理论依据，支撑其在新型航空型号中的可靠应用。

In the preforming-compaction process, carbon fiber woven thermoset composites are subject to the combined effects of multi-filed coupling and large deformation, resulting in their mechanical behaviors very complicated, leading to the difficulty in accurately predicting their deformation. This project aims to conduct mechanical behavior research and construct high accuracy integrated analysis model for carbon fiber woven thermoset composites under the multi-field coupling in the preforming-compaction process. Firstly, the mechanical behaviors of carbon fiber woven thermoset composites under the high preforming temperature are investigated, and the evolution law of macroscopic thermal conductivity with in-plane shearing deformation is revealed. Secondly, the anisotropic thermo-viscous-hyperelastic constitutive model of woven thermoset composites is derived, and then a fully thermal-mechanical coupled preforming model with dynamic evolution of macroscopic effective thermal conductivity is established. Thirdly, the viscoelastic behavior of fiber reinforcement and the resin flow behavior in the compaction process are studied, the influence mechanism of yarn angle and fiber volume fraction on the saturated permeability of fiber reinforcement is identified, and a hydro-thermo-mechanical coupled compaction model with non-uniform distribution of permeability and temperature is built. Finally, with accounting for the impact of preforming, an integrated preforming-compaction model is proposed and validated with typical curved surface composites structure. This project can provide high-fidelity prediction method and theoretical support for the manufacturing of carbon fiber woven thermoset composites parts, supporting the reliable application of thermoset woven composites in the new generation aircraft.