Finite element analysis of auxetic plate deformation

Computational Modelling of Auxetics

“…In this chapter, results of studies described in (Strek et al, 2008) and (Poźniak et al, 2010) have been reviewed and extended. By considering simple 2D and 3D examples, it has been shown that constrained auxetics can exhibit (locally) negative compliance.…”

“…of infinite elastic moduli. In the present chapter we briefly review the results obtained in (Strek et al, 2008) and (Pozniak et al, 2010). By studying larger meshes in 3D and finer ones in 2D we extend those investigations to computationally 'larger' systems.…”

“…The aim of this chapter is to demonstrate recently discovered anomalous deformation of an auxetic plate, constrained by fixing two opposite sides, which is loaded by uniform tension (or compression) applied perpendicularly to two other opposite sides of the plate. The problem was studied both in three dimensions (3D) by Strek et al (Strek et al, 2008) and in two dimensions (2D) by Pozniak et al (Pozniak et al, 2010) by finite element methods. In all the cases studied it has been assumed that the material was isotropic.…”

“…The paper (Strek et al, 2008) dealt with computer simulations of mechanical behaviour of a thick elastic plate. Simulations have been done for Poisson's ratio from interval 5 0 1 .…”

Rayleigh-type wave propagation in an auxetic dielectric

“…Auxetics are materials that have a negative Poisson's ratio [Stręk et al 2008;2009;. The earliest publications providing information on the unusual auxetic properties of certain natural materials appeared almost a hundred years ago, but they did not arouse great interest because of the low reproducibility of the reported experimental results.…”