# Green strain

## Description

A strain is a normalized measure of deformation representing the displacement between particles in the body relative to a reference length.The concept of strain is used to evaluate how much a given displacement differs locally from a rigid body displacement. One of such strains for large deformations is the Green- Lagrangian finite strain tensor.

Related formulas## Variables

ϵ_{G} | Green strain (dimensionless) |

l | The final length of the material (m) |

L | The original length of the material (m) |