Poisson’s ratio calculator

The Poisson’s ratio is a material property that relates the lateral strain (strain perpendicular to the applied stress) to the axial strain (strain parallel to the applied stress) in a material when subjected to stress. It is denoted by the symbol (nu) and is a dimensionless quantity.

The formula for Poisson’s ratio () in terms of stress is given by:

where:

  • (nu) is the Poisson’s ratio (dimensionless),
  • lat is the lateral strain,
  • axial is the axial strain.

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