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

ALDERSON, Andrew, ALDERSON, K.L., ATTARD, D., EVANS, K.E., GATT, R., GRIMA, J.N., MILLER, W., RAVIRALA, N., SMITH, C.W. and ZIED, K. (2010). Elastic constants of 3-, 4- and 6-connected chiral and anti-chiral honeycombs subject to uniaxial in-plane loading. Composites Science and Technology, 70 (7), 1042-1048.

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Official URL: http://dx.doi.org/10.1016/j.compscitech.2009.07.00...
Link to published version:: 10.1016/j.compscitech.2009.07.009

Abstract

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.

Item Type: Article
Additional Information: Published in a special issue on Chiral Smart Honeycombs
Research Institute, Centre or Group: Materials and Engineering Research Institute > Polymers Nanocomposites and Modelling Research Centre
Identification Number: 10.1016/j.compscitech.2009.07.009
Related URLs:
Depositing User: Andrew Alderson
Date Deposited: 05 Aug 2013 09:13
Last Modified: 20 Aug 2015 04:46
URI: http://shura.shu.ac.uk/id/eprint/7200

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