He Liang, Yao Zhaoyue, Jiang Lanlan, Guo Zaoyang, Lyu Qihui
School of Science, Harbin Institute of Technology, Shenzhen 518055, China.
Research Institute of Interdisciplinary Science, School of Materials Science and Engineering, Dongguan University of Technology, Dongguan 523808, China.
Polymers (Basel). 2025 Jun 20;17(13):1720. doi: 10.3390/polym17131720.
This study proposes a bionic helical configuration design concept, focusing on glass-fiber-reinforced polymer matrix composites. Through a combination of experimental and numerical simulation methods, it systematically investigates the resistance to multiple impacts and damage tolerance. The research designs and fabricates two types of bionic laminates: a cross-helical and a symmetric-helical structures. By conducting repeated impact experiments at 5 J of energy for 1, 5, 10, and 15 impact times and employing advanced characterization techniques, such as ultrasonic C-scan and X-ray CT, the study reveals the mechanisms of interlaminar damage propagation and failure characteristics. Based on experimental findings, a finite element model encompassing the entire impact process and post-impact compression behavior is established. Utilizing this model, three optimized novel bionic configurations are further developed, providing new insights and theoretical support for the structural design of high-performance impact-resistant polymer matrix composites.
本研究提出了一种仿生螺旋构型设计概念，重点关注玻璃纤维增强聚合物基复合材料。通过实验和数值模拟方法相结合，系统地研究了其对多次冲击的抗性和损伤容限。该研究设计并制造了两种类型的仿生层压板：交叉螺旋结构和对称螺旋结构。通过在5焦耳能量下进行1次、5次、10次和15次冲击的重复冲击实验，并采用先进的表征技术，如超声C扫描和X射线CT，揭示了层间损伤扩展机制和失效特性。基于实验结果，建立了一个涵盖整个冲击过程和冲击后压缩行为的有限元模型。利用该模型，进一步开发了三种优化的新型仿生构型，为高性能抗冲击聚合物基复合材料的结构设计提供了新的见解和理论支持。
