工艺与制造英文2021被引 19
通过树脂流动模拟改善非高压釜工艺碳纤维增强复合材料飞机翼梁的浸润质量
Improvement of impregnation quality on out-of-autoclave processed CFRP aircraft wing spar through resin flow simulation
Dong-Cheol Park, Tianyu Yu, Soo-Jeong Park, Do‐Hoon Shin, Yun‐Hae Kim · Korea Maritime and Ocean University
摘要整理
真空辅助树脂传递模塑（VaRTM）正成为高压釜工艺最有力的替代方案之一。VaRTM 在真空环境下应用树脂注射工艺，通常在工艺中分别使用纤维增强体和聚合物基体。VaRTM 工艺主要受预制体渗透率和树脂粘度等材料特性的影响。其中，树脂进出口位置的工艺设计与工艺缺陷密切相关，不合理的进出口布置会导致气孔等缺陷，对制品质量有决定性影响。本研究采用 VaRTM 工艺制造了高度弯曲扭转的翼梁结构，利用应用力学程序-树脂传递模塑（PAM-RTM）软件进行流动模拟，并制作了三种不同进出口线路条件的试验件进行对比，以预测和改善浸润质量。模拟结果与三种工况试验件具有良好的一致性，验证了较短的进出口长度能改善浸润质量。研究表明，通过 VaRTM 工艺中的流动模拟分析可以有效改善制品的浸润质量和内部质量。
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