非等温RTM工艺的数值模拟  

Numerical simulation of non-isothermal RTM process

作　　者：施飞[1] 董湘怀[1] 

机构地区：[1]上海交通大学塑性成形系,上海200030

出　　处：《复合材料学报》2009年第4期146-150,共5页Acta Materiae Compositae Sinica

基　　金：国家自然科学基金(50575143)

摘　　要：现代RTM生产工艺填充速度快、固化周期短,是一个非等温的生产过程。通过分析RTM工艺过程,考虑了能量守恒和固化反应,运用控制体/有限元格式和迎风格式,对整个过程进行离散,建立了相应的方程组,并编写了相应的代码,进行了数值模拟。结果表明,在采用较少单元网格的情况下,模拟结果与相关文献的结果一致。The modern RTM process is actually a non-isothermal process due to the high speed of the filling mold and the short curing period. By analyzing the process and investigating related problems, a mathematical model was founded considering energy conservation equation and curing equation by using CV/FEM and upwind scheme. The differential equations were also discretized and integrated. The control equations fitting for numerical simulation are produced and the code is developed, and the calculation results are in agreement with those of the correlative literature.

关 键 词：非等温RTM 数值模拟 控制体/有限元 迎风格式 热传递 

分 类 号：TB332[一般工业技术—材料科学与工程]