A class of auxetic three-dimensional lattices

被引：76

作者：

Cabras, Luigi ^{[1
]}

Brun, Michele ^{[1
]}

机构：

[1] Univ Cagliari, Dipartimento Ingn Meccan Chim & Mat, Piazza Armi, I-09123 Cagliari, Italy

来源：

JOURNAL OF THE MECHANICS AND PHYSICS OF SOLIDS | 2016年 / 91卷

关键词：

Auxetic structure; Microstructured medium; Negative Poisson's ratio; Elasticity; Metamaterials; NEGATIVE POISSON RATIOS; ALPHA-CRISTOBALITE; BEHAVIOR; FOAM; METAMATERIALS; PLANAR; ELASTICITY; MODULUS; TENSORS; DESIGN;

D O I：

10.1016/j.jmps.2016.02.010

中图分类号：

T [工业技术];

学科分类号：

120111 [工业工程];

摘要：

We propose a class of auxetic three-dimensional lattice structures. The elastic microstructure can be designed to have an omnidirectional Poisson's ratio arbitrarily close to the stability limit of -1. The cubic behaviour of the periodic system has been fully characterized; the minimum and maximum Poisson's ratio and the associated principal directions are given as a function of the microstructural parameters. The initial microstructure is then modified into a body-centred cubic system that can achieve Poisson's ratio lower than -1 and that can also behave as an isotropic three-dimensional auxetic structure. (C) 2016 Elsevier Ltd. All rights reserved.

引用

页码：56 / 72

页数：17

共 70 条

[1]

An auxetic filter: A tuneable filter displaying enhanced size selectivity or defouling properties [J].