A realistic generic model for anti-tetrachiral systems

被引：95

作者：

Gatt, Ruben ^{[1
]}

Attard, Daphne ^{[1
]}

Farrugia, Pierre-Sandre ^{[2
]}

Azzopardi, Keith M. ^{[1
]}

Mizzi, Luke ^{[1
]}

Brincat, Jean-Pierre ^{[1
]}

Grima, Joseph N. ^{[1
,3
]}

机构：

[1] Univ Malta, Metamat Unit, Fac Sci, MSD-2080 Msida, Malta

[2] Univ Malta, Dept Phys, Fac Sci, MSD-2080 Msida, Malta

[3] Univ Malta, Dept Chem, Fac Sci, MSD-2080 Msida, Malta

来源：

PHYSICA STATUS SOLIDI B-BASIC SOLID STATE PHYSICS | 2013年 / 250卷 / 10期

关键词：

analytical modeling; finite element analysis; negative Poisson's ratio; Young's modulus; NEGATIVE POISSON RATIO; DEFORMATION; ELASTICITY; HONEYCOMB; BEHAVIOR;

D O I：

10.1002/pssb.201384246

中图分类号：

O469 [凝聚态物理学];

学科分类号：

070205 ;

摘要：

Chiral systems are a class of structures, which may exhibit the anomalous property of a negative Poisson's ratio. Proposed by Wojciechowski and implemented later by Lakes, these structures have aroused interest due to their remarkable mechanical properties and numerous potential applications. In view of this, this paper investigates the on-axis mechanical properties of the general forms of the flexing anti-tetrachiral system through analytical and finite element models. The results suggest that these are highly dependent on the geometry (the ratio of ligament lengths, thicknesses, and radius of nodes) and material properties of the constituent materials. We also show that the rigidity of an anti-tetrachiral system can be changed without altering the Poisson's ratio.

引用

页码：2012 / 2019

页数：8

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