鞘翅仿生铝合金波纹夹芯结构冲击失效机理及吸能特性研究

doi:10.11896/cldb.22080103

材料导报

2024, Vol. 38

Issue (24): 22080103-8 https://doi.org/10.11896/cldb.22080103

金属与金属基复合材料

鞘翅仿生铝合金波纹夹芯结构冲击失效机理及吸能特性研究

邓云飞^*, 赵鑫, 王中山, 冯正兴

中国民航大学航空工程学院,天津 300300

Study on Impact Failure Mechanism and Energy Absorption Characteristics of Elytron Bio-inspired Aluminum Corrugated Sandwich Plate

DENG Yunfei^*, ZHAO Xin, WANG Zhongshan, FENG Zhengxing

College of Aeronautical Engineering, Civil Aviation University of China, Tianjin 300300, China

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摘要为研究一种由昆虫鞘翅启发的仿生波纹夹芯结构抗弹体的冲击性能,使用有限元软件ABAQUS建立刚性弹体冲击2A12-T4波纹板的数值仿真模型,分析弹体头部形状和冲击位置对其损伤特性及耗能的影响。结果表明,仿生波纹夹芯结构不同位置对弹体抗冲击性能存在差异。节点及基座位置对卵形头弹体的抗冲击性能最好,而中间位置对平头弹体表现出更好的抗冲击能力。平头弹体冲击下,波纹板抗冲击性能受冲击位置的影响最大,其次是半球形头弹体,而卵形头弹体冲击下,波纹板的抗冲击性能较为均衡,受冲击位置的影响较小。此外,波纹板的损伤模式及耗能分布情况均受到冲击位置与弹体头部形状的影响。

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关键词: 仿生结构失效模式弹道极限速度冲击

Abstract: To study the impact resistance of a bionic corrugated sandwich structure inspired by insectelytron, numerical models of rigid projectile impacting 2A12-T4 corrugated plate were established using the finite element software ABAQUS, and validation was performed to analyze the effects of projectile nose shape and impact position on its damage characteristics and energy dissipation. The results show that the impact resis-tance of corrugated plate with impact positions are significant different, the node and base positions have the best impact resistance to ogival-nosed projectile, while the middle position has the best impact resistance to blunt-nosed projectile. The impact resistance of the corrugated plate is most affected by the impact position under the blunt-nosed projectile, followed by the hemispherical-nosed projectile, while the different positions of the corrugated plate show more balanced impact resistance under the ogival-nosed projectile. In addition, the damage pattern and energy dissipation distribution of the corrugated plate are affected by the impact position and the shape of the projectile nose.

Key words: bionic structure failure mode ballistic limit velocity impact

出版日期: 2024-12-25 发布日期: 2024-12-20

ZTFLH:

TG156

基金资助: 国家自然科学基金(11702317);中央高校基本科研业务费项目(3122022045)

通讯作者: * 邓云飞,博士,中国民航大学副教授。主要从事航空器结构强度适航技术研究,重点研究材料和结构冲击动力学的实验与仿真技术,在国内外重要期刊发表文章60多篇,主持和参与10多项国家级及省部级项目。 yfdeng@cauc.edu.cn

引用本文:

邓云飞, 赵鑫, 王中山, 冯正兴. 鞘翅仿生铝合金波纹夹芯结构冲击失效机理及吸能特性研究[J]. 材料导报, 2024, 38(24): 22080103-8.
DENG Yunfei, ZHAO Xin, WANG Zhongshan, FENG Zhengxing. Study on Impact Failure Mechanism and Energy Absorption Characteristics of Elytron Bio-inspired Aluminum Corrugated Sandwich Plate. Materials Reports, 2024, 38(24): 22080103-8.

链接本文:

http://www.mater-rep.com/CN/10.11896/cldb.22080103 或 http://www.mater-rep.com/CN/Y2024/V38/I24/22080103

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