Poison's ratio

The maximum value of poison ratio for elastic material is 0.5
The Poisson's ratio of a stable, isotropic, linear elastic material will be greater than −1.0 or less than 0.5because of the requirement for Young's modulus, the shear modulus and bulk modulus to have positive values. Most materials have Poisson's ratio values ranging between 0.0 and0.5.

Material	Poisson's ratio
rubber	0.4999 [9]
gold	0.42–0.44
saturated clay	0.40–0.49
magnesium	0.252-0.289
titanium	0.265-0.34
copper	0.33
aluminium-alloy	0.32
clay	0.30–0.45
stainless steel	0.30–0.31
steel	0.27–0.30
cast iron	0.21–0.26
sand	0.20–0.455
concrete	0.1-0.2
glass	0.18–0.3
metallic glasses	0.276–0.409 [14]
foam	0.10–0.50
cork	0.0