Role of vacuum pressure and port locations on flow front control for liquid composite molding processes

被引：12
作者：
Hsiao, KT [1 ]
Gillespie, JW
Advani, SG
Fink, BK
机构：
[1] Univ Delaware, Ctr Composite Mat, Dept Mech Engn, Newark, DE 19716 USA
[2] Univ Delaware, Ctr Composite Mat, Dept Mat Sci & Engn, Newark, DE 19716 USA
[3] Univ Delaware, Ctr Composite Mat, Dept Civil & Environm Engn, Newark, DE 19716 USA
[4] USA, Res Lab, Aberdeen Proving Ground, MD 21005 USA
来源：
POLYMER COMPOSITES | 2001年 / 22卷 / 05期
关键词：
D O I：
10.1002/pc.10568
中图分类号：
TB33 [复合材料];
学科分类号：
摘要：
In this paper, the influence of air pressure gradients at the flow front, due to the presence of two air vents under different vacuum pressures, is investigated for Liquid Composites Molding (LCM) Processes such as Resin Transfer Molding (RTM) and Vacuum Assisted Resin Transfer Molding (VARTM). An analytical model is introduced to predict the pressure distribution. It is suggested that the air pressure variation along the flow front can be used to control the flow front progression during the injection molding processes. The parametric studies identify a simple relationship that captures the most important process physics, which in practice can be implemented for flow front control.
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收藏
页码：660 / 667
页数：8
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