Exploration of auxetics materials in sport

A special property of auxetic materials is their negative Poisson’s ratio : this material shortens or lengthen in all directions when subjected respectively to a compressive or tensile force. This unusual characteristic opens up new perspectives in many fields. Sport is one of the fields where these properties can be well exploited. Already studied and already used for protective equipment, their properties could also prove themselves useful with other application such as grips. The goal of this paper is to study the properties of a sole cell, modelled to exhibit the auxetic behaviour, although the material itself is not auxetic. 3D modelling will allow both parametric finite element studies and the possibility of making 3D prints for testing friction especially.