Negative Poisson's Ratio Behavior Induced by an Elastic Instability

被引:681
|
作者
Bertoldi, Katia [1 ]
Reis, Pedro M. [2 ]
Willshaw, Stephen [3 ]
Mullin, Tom [3 ]
机构
[1] Univ Twente, NL-7500 AE Enschede, Netherlands
[2] MIT, Dept Math, Cambridge, MA 02139 USA
[3] Univ Manchester, Dept Phys & Astron, Manchester M13 9PL, Lancs, England
关键词
DESIGN; FOAM;
D O I
10.1002/adma.200901956
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
Negative Poisson's ratio behavior has been uncovered in cellular solids that comprise a solid matrix with a square array of circular voids. The simplicity of the fabrication implies robust behavior which is relevant over a range of scales. The behavior results from an elastic instability which induces a pattern transformation and excellent quantitative agreement is found between calculation and experiment.
引用
收藏
页码:361 / +
页数:7
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