文献类型：期刊文献

中文题名：三维RIM充模模拟

英文题名：3 D SIMULATION OF RIM MOLD FILLING

作者：任世杰[1];戴干策[1]

机构：[1]华东理工大学联合反应工程研究所,上海200237

年份：1999

卷号：15

期号：5

起止页码：5

中文期刊名：高分子材料科学与工程

外文期刊名：Polymer Materials Science & Engineering

收录：CSTPCD;;EI(收录号：2000045119729);Scopus;北大核心:【北大核心1996】；CSCD:【CSCD2011_2012】；

语种：中文

中文关键词：充模;数值模拟;三维;RIM;注塑成型;高聚物

外文关键词：RIM, mold filling, FEM

摘要：采用混合数值方法对三维 Ｒ Ｉ Ｍ 充模过程进行了数值模拟，即在模腔宽度上采用有限元法，而在厚度方向上采用有限差分方法，对三维问题进行求解。采用这种方法，避开了直接求取三维有限元所带来的困难。同时采用了任意拉格朗日欧拉法处理流动前缘。文中对数值结果进行了讨论。
The 3 D numerical simulation of the filling stage of the reaction injection molding was investigated. A model of this process is developed and a hybrid numerical method used in RIM mold filling calculation is adoped to treat 3 D problem, i.e., FEM is used in lay flat direction of the cavity and FDM is used in the thickness direction. The calculation mesh creates once the front moves to satisfy the boundary conditions of the flow front. ALE method is adopted to treat the flow front. The temperature and conversion distribution are given and the results are discussed in this paper.