对国内外在RTM成型工艺中的渗透率预测方法进行了文献回顾.系统论述了理论分析法和数值模拟法,评析了各方法中模型存在的问题,比较了模型间的不足.理论分析法中详细介绍了毛细管模型和规则排列柱阵模型在单向纤维渗透率预测中的应用.数值模拟法中重点介绍了均匀化法、Boltzman网格法和单胞法对单向纤维和平面机织纤维渗透率的预测.回顾了国内对渗透率预测的研究,其方法主要以实验分析为基础,分析了纤维结构与渗透率的关系,讨论了渗透率特性对工艺过程的影响规律.提出了目前在渗透率预测研究中仍然存在的一些不足,指出了该领域将来的研究方向.
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