Finite element analysis of auxetic obstacle deformation and fluid flow in a channel

Rayleigh-type wave propagation in an auxetic dielectric

“…For the auxetic [Stręk et al 2009] material and for the weak external electric field, character of examined dependence is similar to presented above (Figure 2). Significant differences become apparent in the case of strong external electric field (g ≥ g C ).…”

“…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.…”

Finite Element Analysis of the Influence of the Covering Auxetic Layer of Plate on the Contact Pressure

“…Strek and co-authors analyzed the deformation of auxetic plate and showed negative stiffness of analyzed plate, [17] and deformation of an auxetic obstacle in the channel during fluid flow. [18] Bending of unidirectional fibrous composite reinforced with auxetic fibres was numerically analyzed by Jopek [19] who also analyzed thermoauxetic behavior of composites. [20] The elastic longitudinal tension of thin twolayered composite plate built of materials having positive and negative Poisson's ratios (auxetics and nonauxetics) were analyzed by Goldstein et al [21] Hou et al described three-points bending and failure behavior of honeycomb topologies consisting of auxetic gradient cellular structures.…”

Effective mechanical properties of concentric cylindrical composites with auxetic phase

“…The influence of the Poisson's ratio of a viscoelastic obstacle on the flow in a two‐dimensional channel was studied by a finite element computer simulation by Strek et al 24. An anomalous deformation of the obstacle was observed when the Poisson's ratio was negative and close to its minimum value.…”