工艺与制造英文2025被引 1
通过3D打印制造连续苎麻纤维增强双基体复合材料的弯曲性能调控
Tailoring Flexural Properties With Continuous Ramie Fiber‐Reinforced Dual‐Matrix Composites via <scp>3D</scp> Printing
Xianhui Wu, Jiashu Sheng, Xiaochong Wang, Zhi Han, Ping Cheng · School of Traffic & Transportation Engineering Central South University Changsha China
摘要整理
本研究提出了一种新型策略，用于制造3D打印连续苎麻纤维增强双基体复合材料（CFRDCs），专门设计用以满足不同的载荷需求。通过将连续纤维增强复合材料（CFRC）原理与优化的打印路径规划相结合，系统地制造了具有不同基体组成的CFRDCs。采用三点弯曲试验全面评估了其力学性能。结果表明，CFRDCs表现出显著增强的能量吸收能力，分别超过纯聚对苯二甲酸乙二醇酯（PETG）和聚乳酸+（PLA+）复合材料66%和20%。此外，采用不同比例的基体层有效解决了传统复合材料体系中常见的性能差异问题。最后，通过对失效模式和损伤特征的深入分析，阐明了材料组成与弯曲失效机制之间的关系。该研究为3D打印纤维增强复合材料的性能设计和工艺优化提供了新的思路。
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