# Young's Modulus

## Description

Young’s modulus, also known as the Tensile modulus or elastic modulus, is a measure of the stiffness of an elastic isotropic material and is a quantity used to characterize materials. It is defined as the ratio of the stress along an axis over the strain along that axis in the range of stress in which Hooke’s law holds.

Related formulas## Variables

E | Young's modulus (modulus of elasticity) (pascal) |

F | force exerted on an object under tension (N) |

L_{0} | original length of the object (m) |

A_{0} | original cross-sectional area through which the force is applied (m^{2}) |

Δ_{L} | amount by which the length of the object changes (m) |