Definition:Poisson's Ratio

Definition

Let $B$ be a solid body.

Let $B$ be under a force of compression or tension applied longitudinally.

Poisson's ratio is the ratio of the longitudinal strain on $B$ to the lateral strain on $B$.

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Symbol

$\sigma$

The symbol for Poisson's ratio is $\sigma$.

Its $\LaTeX$ code is \sigma .

Also see

• Results about Poisson's ratio can be found here.

Source of Name

This entry was named for Siméon-Denis Poisson.

Sources

• 1998: David Nelson: The Penguin Dictionary of Mathematics (2nd ed.) ... (previous) ... (next): Poisson's ratio
• 2008: David Nelson: The Penguin Dictionary of Mathematics (4th ed.) ... (previous) ... (next): Poisson's ratio