Poisson's Ratio

Written by Jerry Ratzlaff on . Posted in Classical Mechanics

poissons ratio Apoissons ratio 1APoisson's ratio, abbreviated as Po, \(\mu\) or \(\nu\), is the elastic ratio between lateral strain and longitudinal strain.  Poisson's ratio can be considered to be unit-less.

 

Poisson's Ratio formula

\(\large{ \mu = \frac { \varepsilon_t } { \varepsilon_a }   }\)   

Where:

\(\large{ \mu }\)  (Greek symbol mu) = Poisson's Ratio

\(\large{ \epsilon_a }\)  (Greek symbol epsilon) = axial or longitudinal strain (right angle to load)

\(\large{ \epsilon_t }\)  (Greek symbol epsilon) = lateral or transverse strain (direction of load)

 

Tags: Equations for Strain and Stress