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Material property of a solid body measuring as 

proportionality coefficient between tensile stress  (force per unit area) and axial strain  (proportional deformation) in the linear elastic region of a material:

E' = \frac{E}{1-\nu^2}

where

 Young modulus

Poisson's ratio


It has  a meaning of proportionality coefficient between plane stress and plane strain under plane stress conditions (when stress vector is zero across a particular plane).

See Also


Physics / Mechanics / Continuum mechanics 

[Compressibility][ initial pore compressibility ]Young modulus (E) ][ Poisson's ratio (ν) ]

Geomechanical Rock Modelling ]