先进复合材料VARTM工艺树脂流动数值模拟研究  

Study on Numerical Simulation of Resin Flow of Advanced Composite Materials Manufactured by Vacuum Assisted RTM Process

作　　者：李晨 黄甲 陈程 高丽敏 LI Chen;HUANG Jia;CHEN Cheng;GAO Limin(Beijing Key Laboratory of Civil Aircraft Structures and Composite Materials,COMAC Beijing Aeronautical Science&Technology Research Institute,Beijing 102211,China;School of Mechanical Engineering,University of Shanghai for Science and Technology,Shanghai 200093,China)

机构地区：[1]中国商飞北京民用飞机技术研究中心民用飞机结构与复合材料北京市重点实验室,北京102211 [2]上海理工大学机械工程学院,上海200093

出　　处：《航空制造技术》2020年第5期68-73,共6页Aeronautical Manufacturing Technology

摘　　要：复合材料液体成型技术是一种低成本、高效率的复合材料制造工艺。基于理查德方程和一种轮廓函数建立了一种预报VARTM(Vacuum Assisted Resin Transfer Molding)工艺充模过程中不饱和流动情况下的树脂流动前沿特性和压强场的方法。采用COMSOL Multiphysics软件进行有限元数值模拟,提出浸润比参数λ,将不同时刻的数值模拟结果与试验结果进行量化对比,良好的对比结果证明了该方法的可靠性。Liquid composites molding is a low cost and high efficiency process of composites manufacturing.The presented work is based on Richard’s equation and a contour function to predict the pressure field and resinflow front tracking at transient situation of VARTM(vacuum assisted resin transfer molding) process. Finite element method(FEM) is applied to carry out the numerical simulation realized by COMSOL Multiphysics software. A parameter named infusion ratio λ to compare the results of numerical simulation and the experiment. Good matching of the results is achieved to prove the credibility of this method.

关 键 词：复合材料 液体成型 渗透率 树脂浸渍 充模过程 数值模拟 

分 类 号：TB33[一般工业技术—材料科学与工程]