Strain
Strain, abbreviated as \(\epsilon\) (Greek symbol epsilon), also called linear strain or longitudinal strain, is the deformation, stretched or compressed, of a material compared to its original length.
Strain formulas
\(\large{ \epsilon = \frac{ \Delta l }{ l_i } }\) | |
\(\large{ \epsilon = \frac { \sigma } { \lambda } }\) | (elastic modulus) |
\(\large{ \epsilon = \frac { \sigma } { E } }\) | (Young's modulus) |
Where:
\(\large{ \epsilon }\) (Greek symbol epsilon) = strain
\(\large{ \lambda }\) (Greek symbol lambda) = elastic modulus
\(\large{ \Delta l }\) = length differential
\(\large{ l_i }\) = initial length
\(\large{ \sigma }\) (Greek symbol sigma) = stress
\(\large{ E }\) = Young's modulus