工艺与制造英文2021被引 5
基于流动控制方法的树脂膜铺层制造复合材料低速冲击性能增强
Enhanced Low-Velocity Impact Properties for Resin Film Infusion-Manufactured Composites by Flow-Control Approach
Juan‐Antonio Almazán‐Lázaro, Elías López‐Alba, Sebastian Schmeer, F.A. Díaz · Universidad de Jaén
摘要整理
复合材料机械性能的优化自其在航空领域应用以来一直是重要课题。降低能耗、提高安全性和可靠性是实现复合材料可持续应用的必要条件。复合材料的机械性能与材料中缺陷含量密切相关，其中孔隙是树脂膜铺层（RFI）制造复合材料最主要的缺陷源。最小化缺陷含量可实现机械性能最大化和轻量化设计。本研究采用基于计算机视觉的新型方法控制浸润速度，降低孔隙含量并增强冲击性能。通过分析和优化浸润速度，获得了最优的落锤冲击性能。该方法应用于常规复合材料和缝合增强复合材料，均实现了损伤阈值载荷、峰值力和损伤面积的改善。虽然缝合加强会产生额外孔隙并降低面内性能，但损伤面积的减小带来了整体机械性能的正向平衡。同时，该新型方法为RFI工艺提供了显著的自动化和过程控制能力，增强了该工艺的工业应用前景和应用范围。
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