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Perforated Sheets Exhibiting Negative Poisson's Ratios
Author(s) -
Grima Joseph N.,
Gatt Ruben
Publication year - 2010
Publication title -
advanced engineering materials
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.938
H-Index - 114
eISSN - 1527-2648
pISSN - 1438-1656
DOI - 10.1002/adem.201000005
Subject(s) - auxetics , poisson distribution , poisson's ratio , materials science , diamond , compression (physics) , composite material , tension (geology) , mathematics , statistics
Sheets made from readily available conventional materials containing diamond or star shaped perforations are shown to exhibit various Poisson's ratio values which could also be negative (auxetic). This behavior may be exhibited in both tension and compression and can be explained through models based on “rotating rigid units.” This provides an easy manner for the manufacture of auxetic or conventional systems at any scale which can be tailor made to exhibit particular values of the Poisson's ratio.