Poisson's Ratio

on . Posted in Classical Mechanics

poissons ratio 1APoisson's ratio, abbreviated as Po, \(\mu\) or \(\nu\), a dimensionless number, is the elastic ratio between lateral strain and longitudinal strain.


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Poisson's Ratio formula

\(\large{ \mu = \frac { \varepsilon_t } { \varepsilon_a }   }\) 
Symbol English Metric
\(\large{ \mu }\)  (Greek symbol mu) = Poisson's Ratio \(\large{ dimensionless }\)
\(\large{ \epsilon_a }\)  (Greek symbol epsilon) = axial or longitudinal strain (right angle to load) \(\large{\frac{in}{in}}\) \(\large{\frac{mm}{mm}}\)
\(\large{ \epsilon_t }\)  (Greek symbol epsilon) = lateral or transverse strain (direction of load) \(\large{\frac{in}{in}}\) \(\large{\frac{mm}{mm}}\)


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Tags: Strain and Stress Equations Soil Equations