Analytical parametric analysis of the contact problem of human buttocks and negative Poisson's ratio foam cushions

By Y. Wang, R. Lakes. 2002

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Three‐dimensional quasi‐static frictional contact by using second‐order cone linear complementarity problem (2006, background): “Various mathematical formulations [2, 3, 1], as well as numerical approaches [5, 4], have been proposed for finite-dimensional frictional contact problems.”
Experiments and parametric studies on 3D metallic auxetic metamaterials with tuneable mechanical properties (2015, background): “sieves [13], seat cushions [14], superior vibration dampers”
The influence of cell micro-structure on the in-plane dynamic crushing of honeycombs with negative Poisson’s ratio (2015, background): “The dynamic responses and impact energyabsorbed characteristics about auxetic cellular materials are just carried out [5, 28, 29].”
Review of Auxetic Materials for Sports Applications: Expanding Options in Comfort and Protection (2018, unknown): “A finite thickness model has been developed for soft and thin cushion materials where Hertzian theory is expected to become invalid, and auxetic cushions were found to reduce the contact pressure on the buttocks (indenter) [286].”