# Elastic modulus

## Description

An elastic modulus, or modulus of elasticity, is the mathematical description of an object or substance’s tendency to be deformed elastically (i.e., non-permanently) when a force is applied to it. The elastic modulus of an object is defined as the slope of its stress–strain curve in the elastic deformation region: As such, a stiffer material will have a higher elastic modulus.

Related formulas## Variables

λ | Elastic modulus (Pa) |

σ | Stress (Pa) |

ϵ | Deformation (Strain) (dimensionless) |