| 二步法三维编织变截面薄壁壳体RTM 工艺数值模拟与试验研究 |
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| 引用本文： | 张国利,李嘉禄,李学明.二步法三维编织变截面薄壁壳体RTM 工艺数值模拟与试验研究[J].复合材料学报,2005,22(3):135-139. |
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| 作者姓名： | 张国利 李嘉禄 李学明 |
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| 作者单位： | 天津工业大学复合材料研究所, 天津 300160 |
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| 基金项目： | 天津市自然科学基金资助项目(023604811) |
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| 摘 要： | 采用分段-集合计算方法, 对二步法三维编织变厚度变截面薄壁壳体RTM 充模工艺过程进行了较深入的理论研究。提出了较准确的树脂流动速度、树脂充模时间和树脂流动压力计算方程。数值预测值与充模试验结果具有良好的一致性, 所推导理论方程为合理设计RTM 充模工艺参数提供了理论依据。
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| 关 键 词： | 复合材料 二步法三维编织 RTM 分段-集合计算方法 数值模拟 |
| 文章编号： | 1000-3851(2005)03-0135-05 |
| 收稿时间： | 2004-05-26 |
| 修稿时间： | 2004-08-03 |
NUMERICAL SIMULATION AND EXPERIMENTAL STUDY OF RESIN FLOW IN RTMPROCESSING FOR TWO STEP 3D BRAID SHELL PREFORM WITH VARYINGSECTION |
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| ZHANG Guoli,LI Jialu,Li Xueming.NUMERICAL SIMULATION AND EXPERIMENTAL STUDY OF RESIN FLOW IN RTMPROCESSING FOR TWO STEP 3D BRAID SHELL PREFORM WITH VARYINGSECTION[J].Acta Materiae Compositae Sinica,2005,22(3):135-139. |
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| Authors: | ZHANG Guoli LI Jialu Li Xueming |
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| Affiliation: | Composites Research Institute of Tianjin Polytechnic University, Tianjin 300160, China |
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| Abstract: | The filling process of RTM for the two step 3D braid shell preform with a varying section was investigated theoretically by employing a calculating method of divide-integration. Several formulations related to the resin velocity, resin filling time and resin flow pressure were proposed accurately. Good agreement was found between the experimental results and numerical predictive values. The deduced formulations could provide the theoretical basis for suitably designing RTM filling parameters. |
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| Keywords: | composites two step 3D braiding RTM divide-integration method numerical simulation |
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