Kagome点阵夹芯结构平压性能研究

doi:10.19936/j.cnki.2096-8000.20220828.032

复合材料科学与工程 ›› 2023, Vol. 0 ›› Issue (5): 5-11.DOI: 10.19936/j.cnki.2096-8000.20220828.032

• 基础研究 • 下一篇

Kagome点阵夹芯结构平压性能研究

裴勇勇^1,2, 虞筱琛¹, 徐海兵¹, 吕东喜¹, 祝颖丹^1*

1.中国科学院宁波材料技术与工程研究所浙江省机器人与智能制造装备技术重点实验室,宁波 315201;
2.中国科学院大学材料与光电研究中心,北京 100049

收稿日期:2022-03-25 出版日期:2023-05-28 发布日期:2023-08-22
通讯作者: 祝颖丹(1977—),女,博士,研究员,主要从事复合材料设计、制备及装备技术方面的研究,y.zhu@nimte.ac.cn。
作者简介:裴勇勇(1996—),男,硕士研究生,主要从事复合材料点阵夹芯结构有限元仿真方面的研究。
基金资助:
国家自然科学基金(U1909220,52177056);浙江省自然科学基金(LD22E050011,LY21E030012);2025重大专项(2021Z124,2021Z025,2019B10112) ;浙江省科技创新人才(2019R52029)

Research on the compression properties of Kagome lattice sandwich structure

PEI Yongyong^1,2, YU Xiaochen¹, XU Haibing¹, LÜ Dongxi¹, ZHU Yingdan^1*

1. Zhejiang Provincial Key Laboratory of Robotics and Intelligent Manufacturing Equipment Technology, Ningbo Institute of Materials Technology & Engineering, Chinese Academy of Sciences, Ningbo 315201, China;
2. Center of Materials Science and Optoelectronics Engineering, University of Chinese Academy of Sciences, Beijing 100049, China

Received:2022-03-25 Online:2023-05-28 Published:2023-08-22

摘要/Abstract

摘要： 采用有限元数值仿真和试验验证相结合的方法研究了复合材料Kagome点阵夹芯结构的平压性能,分析了不同结构参数对Kagome点阵夹芯结构平压性能及失效模式的影响。结果表明,在平压载荷下,杆件直径对Kagome点阵夹芯结构的平压峰值载荷幅度影响较大,而芯子高度和杆件角度对峰值载荷幅度影响较小,夹芯结构失效的主要形式有杆件变形最大处断裂、杆件与面板连接处断裂、杆件交叉连接处断裂等。通过对比Kagome点阵夹芯结构有限元数值仿真结果与平压试验结果,验证了有限元模型的可靠性。

关键词: 点阵结构, Kagome芯, 有限元, 平压性能, 复合材料

Abstract: The compression properties of composite Kagome lattice sandwich structure were studied by the combination of finite element numerical simulation and experimental verification. The effects of different structural parameters on the flattening properties and failure modes of Kagome lattice sandwich structure were analyzed. The results show that under the compression load, the diameter of the rod has great influence on the peak load amplitude of the Kagome lattice sandwich structure, while the height of the core and the angle of the rod have little influence on the peak load amplitude. The main failure modes of the sandwich structure include fracture at the maximum deformation of the rod, fracture at the connection between the rod and the panel and fracture at the cross connection. By comparing the finite element numerical simulation results of Kagome lattice sandwich structure with the flat compression testing results, the reliability of the finite element model is verified.

Key words: lattice sandwich structure, Kagome core, finite element, compression properties, composites

中图分类号:

TB332

裴勇勇, 虞筱琛, 徐海兵, 吕东喜, 祝颖丹. Kagome点阵夹芯结构平压性能研究[J]. 复合材料科学与工程, 2023, 0(5): 5-11.

PEI Yongyong, YU Xiaochen, XU Haibing, LÜ Dongxi, ZHU Yingdan. Research on the compression properties of Kagome lattice sandwich structure[J]. COMPOSITES SCIENCE AND ENGINEERING, 2023, 0(5): 5-11.

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Kagome点阵夹芯结构平压性能研究

Research on the compression properties of Kagome lattice sandwich structure

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