In the present paper a two dimensional plate, made by structural straight elements and showing an auxetic behaviour, is considered. Theoretical, experimental and numerical analyses for the characterisation of its mechanical properties are presented and compared. The main geometrical parameters of an elementary cell affecting the deformation behaviour are highlighted, with emphasis to the negative values of the Poisson’s ratio.
On the auxetic behaviour of metamaterials with re-entrant cell structures / SPAGNOLI, Andrea; BRIGHENTI, Roberto; Lanfranchi, Matteo; Soncini, Francesco. - In: PROCEDIA ENGINEERING. - ISSN 1877-7058. - 109:(2015), pp. 410-417. [10.1016/j.proeng.2015.06.252]
On the auxetic behaviour of metamaterials with re-entrant cell structures
BRIGHENTI, Roberto;
2015
Abstract
In the present paper a two dimensional plate, made by structural straight elements and showing an auxetic behaviour, is considered. Theoretical, experimental and numerical analyses for the characterisation of its mechanical properties are presented and compared. The main geometrical parameters of an elementary cell affecting the deformation behaviour are highlighted, with emphasis to the negative values of the Poisson’s ratio.
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