Design, simulation and experimental verification of novel 3D metamaterial structures with negative Poisson’s ratio

超材料 辅助 泊松分布 刚度 泊松比 变形(气象学) 立方体(代数) 结构工程 数学 材料科学 几何学 复合材料 工程类 统计 光电子学
作者
Hui Chen,Fanchun Li
出处
期刊:Mechanics of Advanced Materials and Structures [Taylor & Francis]
卷期号:30 (1): 17-28 被引量:15
标识
DOI:10.1080/15376494.2021.2006839
摘要

In order to improve the specific stiffness of negative Poisson's ratio metamaterial structures. In this paper, a novel circular NPR (negative Poisson's ratio) metamaterial structure was designed. The equivalent Poisson's ratio and the equivalent elastic modulus of the circular NPR were deduced, and the mechanical properties of the circular NPR structure and the cube NPR structure were compared. Meanwhile, the influence of geometrical size on the Poisson's ratio of the whole structure was studied. The results show that the circular structure has the properties of negative Poisson's ratio. Compared with the cube NPR structure, under the same external dimensions, the weight of the circular NPR structure was reduced by 16.7%. When the two structures were applied the same load, the Von Mises stress of the circular NPR structure decreased by 71.6% compared with that of the cube NPR structure in the elastic range. Due to its light weight and greater resistance to deformation, the specific stiffness of the circular NPR structure was larger. Meanwhile, by changing the geometric size, the negative Poisson's ratio of the circular NPR structure can be regulated.
最长约 10秒,即可获得该文献文件

科研通智能强力驱动
Strongly Powered by AbleSci AI
更新
PDF的下载单位、IP信息已删除 (2025-6-4)

科研通是完全免费的文献互助平台,具备全网最快的应助速度,最高的求助完成率。 对每一个文献求助,科研通都将尽心尽力,给求助人一个满意的交代。
实时播报
1秒前
2秒前
3秒前
5秒前
6秒前
小马过河应助尼尼采纳,获得10
8秒前
8秒前
8秒前
吾将上下而求索完成签到,获得积分10
8秒前
8秒前
8秒前
科研通AI2S应助LIN采纳,获得10
9秒前
9秒前
9秒前
喜悦的半青完成签到,获得积分10
9秒前
10秒前
好宝宝发布了新的文献求助10
11秒前
上官若男应助程艳采纳,获得80
11秒前
伊可创发布了新的文献求助10
12秒前
Ava应助szh123采纳,获得10
13秒前
锦七发布了新的文献求助10
13秒前
小二郎应助收手吧大哥采纳,获得10
15秒前
16秒前
在水一方应助lm采纳,获得10
16秒前
可爱的函函应助jingjingA采纳,获得10
16秒前
Zdh同学完成签到,获得积分10
17秒前
我是老大应助淡然的铭采纳,获得10
18秒前
girl完成签到,获得积分10
19秒前
20秒前
华仔应助HAHAHA采纳,获得10
20秒前
20秒前
小坤同学发布了新的文献求助10
21秒前
22秒前
musejie应助科研通管家采纳,获得10
22秒前
科研通AI2S应助科研通管家采纳,获得10
22秒前
quhayley应助科研通管家采纳,获得10
22秒前
情怀应助科研通管家采纳,获得10
22秒前
Jasper应助科研通管家采纳,获得10
22秒前
22秒前
22秒前
高分求助中
A new approach to the extrapolation of accelerated life test data 1000
ACSM’s Guidelines for Exercise Testing and Prescription, 12th edition 500
‘Unruly’ Children: Historical Fieldnotes and Learning Morality in a Taiwan Village (New Departures in Anthropology) 400
Indomethacinのヒトにおける経皮吸収 400
Phylogenetic study of the order Polydesmida (Myriapoda: Diplopoda) 370
基于可调谐半导体激光吸收光谱技术泄漏气体检测系统的研究 350
Robot-supported joining of reinforcement textiles with one-sided sewing heads 320
热门求助领域 (近24小时)
化学 材料科学 医学 生物 工程类 有机化学 生物化学 物理 内科学 纳米技术 计算机科学 化学工程 复合材料 遗传学 基因 物理化学 催化作用 冶金 细胞生物学 免疫学
热门帖子
关注 科研通微信公众号,转发送积分 3988732
求助须知:如何正确求助?哪些是违规求助? 3531027
关于积分的说明 11252281
捐赠科研通 3269732
什么是DOI,文献DOI怎么找? 1804764
邀请新用户注册赠送积分活动 881869
科研通“疑难数据库(出版商)”最低求助积分说明 809021