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Poisson's Ratio

Poisson's Ratio Equation


$$ \nu = -\frac{\epsilon_{transverse}}{\epsilon_{axial}} $$
where:

ν   =   Poisson's ratio   (Dimensionless)

εtransverse   =   Transverse (laterial) strain   (Dimensionless)

εaxial   =   Axial Strain   (Dimensionless)


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Equation Assumptions


  • The material behaves according to Hooke's Law.
  • The materials is homogeneous and isotropic.
  • The strees applied is uniaxial (applied in only one direction).
  • The material is pure/ideal.