Poisson's Ratio Calculator

Formula

The formula to calculate Poisson's Ratio is:

\[ \nu = -\left(\frac{\epsilon_L}{\epsilon_{\text{longitudinal}}}\right) \]

Where:

\(\nu\) is Poisson's Ratio
\(\epsilon_L\) is the Lateral Strain
\(\epsilon_{\text{longitudinal}}\) is the Longitudinal Strain

Definition

Poisson's Ratio is defined as the ratio of the lateral and axial strain. For many metals and alloys, values of Poisson’s ratio range between 0.1 and 0.5.

Example Calculation

Let's assume the following values:

Lateral Strain (\(\epsilon_L\)) = -0.06
Longitudinal Strain (\(\epsilon_{\text{longitudinal}}\)) = 0.2

Using the formula:

\[ \nu = -\left(\frac{-0.06}{0.2}\right) \]

Evaluating:

\[ \nu = 0.3 \]

Poisson's Ratio is 0.3.

Conversion Chart

Lateral Strain	Longitudinal Strain	Poisson's Ratio
-0.07	0.2	0.350000000000
-0.06	0.2	0.300000000000
-0.05	0.2	0.250000000000