Stiff square structure with a negative Poisson's ratio

被引：34

作者：

Li, Dong ^{[1
]}

Ma, Jie ^{[1
]}

Dong, Liang ^{[2
]}

Lakes, Roderic S. ^{[3
]}

机构：

[1] Northeastern Univ, Coll Sci, Shenyang 110819, Peoples R China

[2] Univ Virginia, Mat Sci & Engn, Charlottesville, VA 22904 USA

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

来源：

MATERIALS LETTERS | 2017年 / 188卷

基金：

中国国家自然科学基金;

关键词：

Structural; Negative Poisson's ratio; Simulation and modeling; Elastic properties; Stiffness; FOAMS;

D O I：

10.1016/j.matlet.2016.11.036

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

A novel 2D cellular structure achieved by alternating rectangular surface indents on the vertical ribs of the unit cells was designed. And the Poisson's ratios of several structures were determined using the finite element method(FEM) as a function of geometric parameters. The simulation results showed that the Poisson's ratio of the 2D cellular structure was sensitive to the cell dimensional ratio, and the value can be tuned from positive to negative(the minimum can reach -1.05). Samples with identical geometric variables were fabricated via 3D printing, and their Poisson's ratios were measured and compared with the ones from simulation. Excellent agreement was found between the experimental results and the simulation. The stiffness of the model can be higher than honeycomb made of regular hexagons with appropriate geometric parameters.

引用

页码：149 / 151

页数：3

共 13 条

[1] Negative Poisson's ratios as a common feature of cubic metals
Baughman, RH
Shacklette, JM
Zakhidov, AA
Stafström, S
[J]. NATURE, 1998, 392 (6674) : 362 - 365
[2] Tailoring Poisson's ratio by introducing auxetic layers
Bilski, Mikolaj
Wojciechowski, Krzysztof W.
[J]. PHYSICA STATUS SOLIDI B-BASIC SOLID STATE PHYSICS, 2016, 253 (07): : 1318 - 1323
[3] AEROGELS - HIGHLY TENUOUS SOLIDS WITH FASCINATING PROPERTIES
FRICKE, J
[J]. JOURNAL OF NON-CRYSTALLINE SOLIDS, 1988, 100 (1-3) : 169 - 173
[4] NEGATIVE POISSON RATIO POLYMERIC AND METALLIC FOAMS
FRIIS, EA
LAKES, RS
PARK, JB
[J]. JOURNAL OF MATERIALS SCIENCE, 1988, 23 (12) : 4406 - 4414
[5] Auxetic behavior from rotating squares
Grima, JN
Evans, KE
[J]. JOURNAL OF MATERIALS SCIENCE LETTERS, 2000, 19 (17) : 1563 - 1565
[6] A composite material with Poisson's ratio tunable from positive to negative values: an experimental and numerical study
Hu, Hong
Silberschmidt, Vadim
[J]. JOURNAL OF MATERIALS SCIENCE, 2013, 48 (24) : 8493 - 8500
[7] Topology optimization for compliant mechanisms, using evolutionary-hybrid algorithms and application to the design of auxetic materials
Kaminakis, Nikolaos T.
Stavroulakis, Georgios E.
[J]. COMPOSITES PART B-ENGINEERING, 2012, 43 (06) : 2655 - 2668
[8] LAKES R, 1987, SCIENCE, V238, P551, DOI 10.1126/science.238.4826.551-a
[9] A unit cell structure with tunable Poisson's ratio from positive to negative
Li, Dong
Dong, Liang
Lakes, Roderic S.
[J]. MATERIALS LETTERS, 2016, 164 : 456 - 459
[10] The properties of copper foams with negative Poisson's ratio via resonant ultrasound spectroscopy
Li, Dong
Dong, Liang
Lakes, Roderic S.
[J]. PHYSICA STATUS SOLIDI B-BASIC SOLID STATE PHYSICS, 2013, 250 (10): : 1983 - 1987

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