Double-Negative Mechanical Metamaterials Displaying Simultaneous Negative Stiffness and Negative Poisson's Ratio Properties

被引：225

作者：

Hewage, Trishan A. M. ^{[1
]}

Alderson, Kim L. ^{[2
]}

Alderson, Andrew ^{[1
]}

Scarpa, Fabrizio ^{[3
]}

机构：

[1] Sheffield Hallam Univ, Fac Arts Comp Engn & Sci, Mat & Engn Res Inst, Howard St, Sheffield S1 1WB, S Yorkshire, England

[2] 72 Phillips Lane, Liverpool L37 4BQ, Merseyside, England

[3] Univ Bristol, Adv Composites Ctr Innovat & Sci, Univ Walk, Bristol BS8 1TR, Avon, England

来源：

ADVANCED MATERIALS | 2016年 / 28卷 / 46期

关键词：

COMPOSITE-MATERIALS; AUXETIC MATERIALS; DESIGN; FABRICATION; BEHAVIOR;

D O I：

10.1002/adma.201603959

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

A scalable mechanical metamaterial simultaneously displaying negative stiffness and negative Poisson's ratio responses is presented. Interlocking hexagonal subunit assemblies containing 3 alternative embedded negative stiffness (NS) element types display Poisson's ratio values of -1 and NS values over two orders of magnitude (-1.4 N mm(-1) to -160 N mm(-1)), in good agreement with model predictions.

引用

页码：10323 / 10332

页数：10

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