On the Effect of the Mode of Connection between the Node and the Ligaments in Anti‐Tetrachiral Systems1. Issue 2 (3rd June 2014)

• Record Type: Journal Article
• Authors: Gatt, Ruben; Brincat, Jean Pierre; Azzopardi, Keith M.; Mizzi, Luke; Grima, Joseph N.
• Is Part Of: Advanced engineering materials. Volume 17:Issue 2(2015:Feb.)
• Page Start: 189
• Page End: 198
• Publication Date: 2014-06-03
• Subjects: Materials -- Periodicals; 620.11
• DOI: 10.1002/adem.201400120
• Languages: English
• ISSNs: 1438-1656

Abstract

<abstract abstract-type="main" xml:lang="en"> <title> <x xml:space="preserve">Abstract</x> </title> <sec id="adem201400120-sec-0001" sec-type="section"> <p>Chiral systems may exhibit auxetic behavior, i.e. they may have a negative Poisson's ratio. This particular property has led to their being studied extensively by several authors. A Finite Elements Study is presented here, investigating the mode of connection between the nodes and ligaments in the anti‐tetrachiral structure. The results show that the amount of gluing material used to attach the ligaments to the node will not affect the Poisson's ratio, but may have a large influence on the observed stiffness of the structure (Young's modulus). It is also shown that the stiffness of the glue will have a large effect on the mode of deformation of the chiral system. This change in mechanism was found to effect the stiffness of the structure but not its Poisson's ratios.</p> </sec> </abstract>