Auxetic behavior from rotating squares

被引:715
|
作者
Grima, JN [1 ]
Evans, KE [1 ]
机构
[1] Univ Exeter, Dept Engn, Exeter EX4 4QF, Devon, England
关键词
D O I
10.1023/A:1006781224002
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
A new mechanism to achieve a negative Poisson's ratio is presented. An arrangement is made which involves rigid squares connected together at their vertices by hinges. The off-axis mechanical properties obtained from the standard transformation equations show that the idealized system is isotropic. The Poisson's ratio has a value of -1 irrespective of the direction of loading. The geometry modelled is the projection of a plane in inorganic crystalline materials and involves octahedrally co-ordinated atoms.
引用
收藏
页码:1563 / 1565
页数:3
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