Depends on the hardness of the formulation. Poisson's ratio depends mainly on the bulk modulus and slightly on the Youngs modulus at very low strains for the subject compound. If the Youngs modulus lies between 0.92 and 9.40MN/m², Poisson's ratio lies between 0.49930 and 0.49993.
the Ppission ratio is: 0.2152 you can refer to this link: http://inmmc.org/ftp/material/silicon-mechanical.html
What is the poission's ratio in machenical structure ?
0,32-0,36
0.25 to 0.3 depends on the steel
G = E/2(1+u) where G = mod of rigidity and u =poisson ration and E = young modulus
Poisson ratio of most linear elastic material can be anywhere between 0 and 0.5.
Du Poisson, or "Poisson's ratio," is a measure in materials science and engineering that describes the ratio of transverse strain to axial strain when a material is deformed elastically. It is named after the French mathematician Siméon Denis Poisson. Typically denoted by the symbol ν (nu), Poisson's ratio helps characterize how materials respond to stress, with values typically ranging from -1 to 0.5 for most materials. A higher Poisson's ratio indicates that a material tends to expand more laterally when compressed.
The Poisson's ratio of germanium telluride (GeTe) typically ranges from approximately 0.25 to 0.35, depending on the specific conditions and phase of the material. This ratio indicates how much the material deforms laterally when subjected to axial stress. Due to its phase-change properties, GeTe's mechanical characteristics, including Poisson's ratio, can vary with temperature and structural modifications.
For elastic, isotropic and homogeneous materials, zero Poisson's ratio means that the material doesn't present lateral deformation on bending, compressing or extending.
Poisson's Ratio of stainless steel
the Ppission ratio is: 0.2152 you can refer to this link: http://inmmc.org/ftp/material/silicon-mechanical.html
For isotropic materials, Rubber - very close to 0.5
The Poisson's ratio of timber typically ranges from 0.2 to 0.5, depending on the species and moisture content. This ratio measures the material's tendency to deform in the lateral direction when subjected to axial stress. Due to the anisotropic nature of timber, its Poisson's ratio can vary significantly in different directions (longitudinal, radial, and tangential). Therefore, it's essential to consider the specific type of timber and its orientation when assessing its Poisson's ratio.
In the Poisson's ratio formula, Poisson's ratio is directly related to Young's modulus. The formula is: Poisson's ratio (Lateral Strain / Longitudinal Strain) - (Transverse Stress / Longitudinal Stress) 1 / 2 (Young's Modulus / Shear Modulus). This shows that Poisson's ratio is inversely proportional to Young's modulus.
The Poisson's Ratio for carbon graphite is typically around 0.15 to 0.3, indicating that when a material is stretched in one direction, it tends to contract in the perpendicular direction by a certain extent.
Poisson's ratio for epoxy resin typically ranges from 0.35 to 0.40. It is a measure of the material's tendency to contract laterally when stretched longitudinally.
Poisson ratio of most linear elastic material can be anywhere between 0 and 0.5.