Elastic constants of 3-, 4-and 6-connected chiral and anti-chiral honeycombs subject to uniaxial in-plane loading

被引：512

作者：

Alderson, A. ^{[1
]}

Alderson, K. L. ^{[1
]}

Attard, D. ^{[2
]}

Evans, K. E. ^{[3
]}

Gatt, R. ^{[2
]}

Grima, J. N. ^{[2
]}

Miller, W. ^{[3
]}

Ravirala, N. ^{[1
]}

Smith, C. W. ^{[3
]}

Zied, K. ^{[1
]}

机构：

[1] Univ Bolton, Ctr Mat Res & Innovat, Bolton BL3 5AB, England

[2] Univ Malta, Fac Sci, Msida MSD 06, Malta

[3] Univ Exeter, Dept Engn, Exeter EX4 4QF, Devon, England

来源：

COMPOSITES SCIENCE AND TECHNOLOGY | 2010年 / 70卷 / 07期

关键词：

Smart materials; Mechanical properties; Deformation; Elastic properties; Finite element analysis (FEA); BEHAVIOR;

D O I：

10.1016/j.compscitech.2009.07.009

中图分类号：

TB33 [复合材料];

学科分类号：

摘要：

Finite element models are developed for the in-plane linear elastic constants of a family of honeycombs comprising arrays of cylinders connected by ligaments. Honeycombs having cylinders with 3,4 and 6 ligaments attached to them are considered, with two possible configurations explored for each of the 3-(trichiral and anti-trichiral) and 4- (tetrachiral and anti-tetrachiral) connected systems. Honeycombs for each configuration have been manufactured using rapid prototyping and subsequently characterised for mechanical properties through in-plane uniaxial loading to verify the models. An interesting consequence of the family of 'chiral' honeycombs presented here is the ability to produce negative Poisson's ratio (auxetic) response. The deformation mechanisms responsible for auxetic functionality in such honeycombs are discussed. (C) 2009 Elsevier Ltd. All rights reserved.

引用

页码：1042 / 1048

页数：7

共 15 条

[1] Auxetic materials [J].