In-plane impact dynamics of honeycomb structure containing curved reentrant sides with negative Poisson's ratio effect

被引:29
|
作者
Shen, Jianbang [1 ,2 ,3 ]
Ge, Jingran [2 ,3 ]
Xiao, Junhua [1 ]
Liang, Jun [2 ,3 ,4 ]
机构
[1] Yanshan Univ, Key Lab Mech Reliabil Heavy Equipments & Large St, Qinhuangdao 066004, Hebei, Peoples R China
[2] Beijing Inst Technol, Inst Adv Struct Technol, Beijing 100081, Peoples R China
[3] Beijing Key Lab Lightweight Multifunct Composite, Beijing, Peoples R China
[4] Beijing Inst Technol, State Key Lab Explos Sci & Technol, Beijing, Peoples R China
基金
中国国家自然科学基金;
关键词
Compression deformation; curved reentrant sides; energy absorption capacity; honeycomb structure; negative Poisson's ratio;
D O I
10.1080/15376494.2020.1824285
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
Honeycomb structure containing curved reentrant sides with negative Poisson's ratio (NPR) was designed and the impact dynamics behaviors were studied by finite element method. The Poisson's ratio and the energy absorption capacity of the honeycomb structure with different arc angle were studied under different compression velocities. The results show that the Poisson's ratio of the honeycomb structure can reach -0.373 with arc angle of 180 degrees. The energy absorption capacity of the honeycomb structure increased with an increasing compression velocity, and the deformation mode changed from X type to V type and I type. When the compression velocity is low, the dynamic response curve of the honeycomb structure with arc angle of 180 degrees has the characteristics of two-stage plateau region. When the compression velocity is high, the energy absorption capacity of the honeycomb structure increased with an increasing arc angle. When the arc angle is higher than 120 degrees, the honeycomb structure has NPR effect, and the energy absorption capacity of the honeycomb structure is better than the honeycomb structure with other arc angles.
引用
收藏
页码:1489 / 1497
页数:9
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