Strain energy

In physics, the elastic potential energy gained by a wire during elongation with a tensile (stretching) or compressive (contractile) force is called strain energy. For linearly elastic materials, strain energy is:

U={\frac {1}{2}}V\sigma \varepsilon ={\frac {1}{2}}VE\varepsilon ^{2}={\frac {1}{2}}{\frac {V}{E}}\sigma ^{2}

where $σ$ is stress, $ε$ is strain, $V$ is volume, and $E$ is Young's modulus:

E={\frac {\sigma }{\varepsilon }}

This article is issued from Wikipedia. The text is licensed under Creative Commons - Attribution - Sharealike. Additional terms may apply for the media files.