Low Porosity Metallic Periodic Structures with Negative Poisson's Ratio

被引：220
|
作者：
Taylor, Michael [1 ]
Francesconi, Luca [2 ]
Gerendas, Miklos [3 ]
Shanian, Ali [4 ]
Carson, Carl [4 ]
Bertoldi, Katia [1 ,5 ]
机构：
[1] Harvard Univ, Sch Engn & Appl Sci, Cambridge, MA 02138 USA
[2] Univ Cagliari, Dept Mat Sci & Mech Engn, I-09124 Cagliari, Italy
[3] Rolls Royce Deutschland Ltd & Co KG, D-15827 Dahlewitz, Blankenfelde Ma, Germany
[4] Rolls Royce Energy, Dorval, PQ H9P 1A5, Canada
[5] Harvard Univ, Kavli Inst, Cambridge, MA 02138 USA
来源：
ADVANCED MATERIALS | 2014年 / 26卷 / 15期
关键词：
auxetic; negative poisson's ratio; periodic; AUXETIC STRUCTURES; BEHAVIOR; FOAMS; STANDARD; DESIGN;
D O I：
10.1002/adma.201304464
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
Auxetic behavior in low porosity metallic structures is demonstrated via a simple system of orthogonal elliptical voids. In this minimal 2D system, the Poisson's ratio can be effectively controlled by changing the aspect ratio of the voids. In this way, large negative values of Poisson's ratio can be achieved, indicating an effective strategy for designing auxetic structures with desired porosity. © 2013 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.
引用
收藏
页码：2365 / 2370
页数：6
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