Chiral three-dimensional lattices with tunable Poisson's ratio

被引：143

作者：

Ha, Chan Soo ^{[1
]}

Plesha, Michael E. ^{[1
]}

Lakes, Roderic S. ^{[1
]}

机构：

[1] Univ Wisconsin, Dept Engn Phys, Madison, WI 53706 USA

来源：

SMART MATERIALS AND STRUCTURES | 2016年 / 25卷 / 05期

基金：

美国国家科学基金会;

关键词：

chirality; negative Poisson's ratio; auxetic; Cosserat; ELASTICITY; BEHAVIOR;

D O I：

10.1088/0964-1726/25/5/054005

中图分类号：

TH7 [仪器、仪表];

学科分类号：

0804 ; 080401 ; 081102 ;

摘要：

Chiral three-dimensional cubic lattices are developed with rigid cubical nodules and analyzed via finite element analysis. The lattices exhibit geometry dependent Poisson's ratio that can be tuned to negative values. Poisson's ratio tends to zero as the cubes become further apart. The lattices exhibit stretch-twist coupling. Such coupling cannot occur in a classical elastic continuum but it can occur in a chiral Cosserat solid.

引用

页数：6

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