Table shows Young's modulus of various materials such as foam, concrete, rubber etc.

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Unit (young's modulus)
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Some facts#

Young's modulus tells us how much a given material is susceptible to deformation during its compression or stretching.
Formally, Young's modulus determines the relationship between stress and strain:

$E = \frac{\sigma}{\epsilon}$
where:
- E - Young's modulus,
- $\sigma$ - stress,
- $\epsilon$ - deformation.
Other common names for Young's modulus include:
- modulus of linear deformation,
- modulus, longitudinal elasticity,
- first spring constant.
Young's modulus is a quantity characteristic for a given material.
Young's modulus is defined for solids. In the case of liquids, a similar value can be liquid bulk modulus.
Young's modulus is most often denoted by uppercase E or uppercase Y.
The basic unit of Young's modulus in the SI system is newton per square meter that is equal to one pascal:

$\left[E\right] = \left[\frac{N}{m^2}\right] = \left[Pa\right]$

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