Engineering
Intermediate

Young's Modulus

Stiffness of a material (stress over strain).

Formula

E=σεE = \frac{\sigma}{\varepsilon}

Variables

\sigmaStress
\varepsilonStrain

Example

Steel’s Young’s modulus (~200 GPa) is why it barely stretches under load.

Did You Know?

Young's modulus measures stiffness — diamond's is about 1,000 times that of rubber.

elasticitymodulusmaterial