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树脂传递模塑工艺细观流动行为研究

发表时间:2011-05-15  浏览量:1602  下载量:770
全部作者: 黄玉霞,谢桂兰,曹尉南,任柏春
作者单位: 湘潭大学机械工程学院
摘 要: 根据树脂在增强材料的流动特点,在流体动力学的基础上建立树脂流动过程的数学模型,采用流体体积函数(volume of fluid,VOF)方法追踪流动前沿,分析树脂传递模塑成型(resin transfer moulding,RTM)工艺在充填过程中产生气泡缺陷的影响因素。结果表明:随着填充速度增大和纤维丝半径减小,束间和束内树脂的流动前沿之差增大,易形成气泡缺陷;而其随粘度变化的影响不大。
关 键 词: 材料加工工程;树脂传递模塑成型;细观流动;流动前沿;数值模拟
Title: Study on the microscopic flow behavior of RTM
Author: HUANG Yuxia, XIE Guilan, CAO Weinan, REN Baichun
Organization: College of Mechanical Engineering, Xiangtan University
Abstract: Based on flow characteristics of resin in reinforcing material, a mathematical model is derived by fluid dynamics, the flow front is tracked by means of the volume of fluid (VOF) method, the influences of parameters on filling process of resin transfer moulding (RTM) are analyzed. The results show that the greater the filling rate is and the lower the cellosilk’s radius is, the steeper the flow front is, the more easily the bubbles flaw is formed. But it is not changed by different viscosity.
Key words: materials processing engineering; resin transfer moulding; microscopic flow; flow front; numerical simulation
发表期数: 2011年5月第9期
引用格式: 黄玉霞,谢桂兰,曹尉南,等. 树脂传递模塑工艺细观流动行为研究[J]. 中国科技论文在线精品论文,2011,4(9):809-812.
 
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