工艺与制造英文2021被引 14
鹰鸮羽毛小羽枝结构仿生设计及连续碳纤维增强聚乳酸复合材料3D打印
Bionic Design and 3D Printing of Continuous Carbon Fiber-Reinforced Polylactic Acid Composite with Barbicel Structure of Eagle-Owl Feather
Yunhong Liang, Chang Liu, Qian Zhao, Zhaohua Lin, Zhiwu Han, Luquan Ren · Jilin University
摘要整理
受鹰鸮羽毛轻质高强特性的启发，成功制备了具有小羽枝结构的仿生连续碳纤维增强聚乳酸（CF/PLA）复合材料，并通过3D打印技术实现。鹰鸮羽毛在外部载荷作用下，小羽枝与中轴之间的夹角减小，耗散部分能量，为仿生羽毛结构模型奠定基础。该模型采用一定排列角度的连续碳纤维进行设计。仿生结构模型设计参数的变化显著影响3D打印仿生复合材料的力学性能。沿拉伸方向的连续碳纤维含量相对较低，限制了仿生复合材料拉伸强度的提升；但由于连续碳纤维的多角度排列设计，有效阻碍了裂纹在仿生复合材料中的扩展，表现出优异的抗冲击性能。该仿生羽毛设计方法和CF/PLA复合材料3D打印工艺的可行性，为其在高冲击载荷应用领域的拓展提供了技术基础。
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