摘要
采用分段集合计算方法,对二步法三维编织变厚度变截面薄壁壳体RTM充模工艺过程进行了较深入的理论研究。提出了较准确的树脂流动速度、树脂充模时间和树脂流动压力计算方程。数值预测值与充模试验结果具有良好的一致性,所推导理论方程为合理设计RTM充模工艺参数提供了理论依据。
The filling process of RTM for the two step 3D braid shell preform with a varying section was investigated theoretically by employing a calculating method of divide-integration. Several formulations related to the resin velocity, resin filling time and resin flow pressure were proposed accurately. Good agreement was found between the experimental results and numerical predictive values. The deduced formulations could provide the theoretical basis for suitably designing RTM filling parameters.
出处
《复合材料学报》
EI
CAS
CSCD
北大核心
2005年第3期135-139,共5页
Acta Materiae Compositae Sinica
基金
天津市自然科学基金资助项目(023604811)
