通过对RTM工艺的分析,可知固化过程是复合材料成型一个非常重要的阶段。本文中运用控制体积法和差分法对固化过程进行了数值模拟,将来自放热化学反应的非线性热源项处理成节点集中载荷。以厚板构件为例,与已发表的实验数据进行了比较,结果表明本文方法的正确性,并在此基础上分析了固化工艺对材料性能的影响。 Through the analysis of RTM process, we can see that the curing process is a very important phase of composite molding. In this paper, the control volume method and the difference method are used to simulate the solidification process, and the non-linear heat source items from the exothermic chemical reaction are processed into the concentrated loads of the nodes. Taking the thick slab as an example, the comparison with the published experimental data shows that the method in this paper is correct, and on the basis of which, the influence of curing process on the material properties is analyzed.