| LCM 充模过程中的边缘效应 |
| |
| 引用本文： | 祝颖丹,王继辉,田正刚,高国强.LCM 充模过程中的边缘效应[J].复合材料学报,2005,22(4):6-10. |
| |
| 作者姓名： | 祝颖丹 王继辉 田正刚 高国强 |
| |
| 作者单位： | 1. 武汉理工大学,材料复合新技术国家重点实验室,武汉,430070
2. 北京玻璃钢研究设计院,北京,102101 |
| |
| 基金项目： | 国家863项目（2001AA335020）; |
| |
| 摘 要： | 边缘效应是复合材料液体模塑成型技术(Liquid composites molding , LCM) 中常见的纤维预成型体铺敷缺陷之一。采用单向流动法研究了边缘效应对纤维预成型体渗透率及充模过程的影响, 结合其等效渗透率的理论预测模型对不同纤维体积含量、不同缝隙宽度条件下的边缘效应进行了模拟与分析, 提出了一边缘效应强弱的表征因子, 并以一较复杂的模腔的充模过程为实例提出了对边缘效应的在线监控策略及处理方案。
|
| 关 键 词： | LCM 边缘效应 等效渗透率 在线控制 |
| 文章编号： | 1000-3851（2005）04-0006-05 |
| 收稿时间： | 08 3 2004 12:00AM |
| 修稿时间： | 2004-08-03 |
EDGE EFFECT IN THE MOLD FILLINGOF LCM |
| |
| Zhu Yingdan,Wang Jihui,TIAN Zhenggang,Gao Guoqiang.EDGE EFFECT IN THE MOLD FILLINGOF LCM[J].Acta Materiae Compositae Sinica,2005,22(4):6-10. |
| |
| Authors: | Zhu Yingdan Wang Jihui TIAN Zhenggang Gao Guoqiang |
| |
| Affiliation: | 1. State Key Lab for Materials Synthesis and Processing, Wuhan University of Technology, Wuhan 430070, China;
2. Beijing FRP Research and Design Institute, Beijing 102101, China |
| |
| Abstract: | Edge effect is one of the common draping defects of a fiber preform in liquid composite molding (LCM) processes. The unidirectional flow method was adopted to study the influences of the edge effect on the preform permeability and the mold filling. Based on the theoretic model of equivalent permeability, the edge effects under the conditions of different fiber contents and gap widths were simulated and analyzed. A characterization factor for the strength of the edge effect was also proposed. Furthermore, the on-line strategic control and measurement for edge effects were described taking the mold filling in a complex mold cavity for a case. |
| |
| Keywords: | LCM edge effect equivalent permeability on-line control |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
| 点击此处可从《复合材料学报》浏览原始摘要信息 |
|
点击此处可从《复合材料学报》下载全文 |
|
