Elasticity

Written by Jerry Ratzlaff. Posted in Properties

Elasticity measures the stiffness of an elastic material.  Elasticity can deformed body and return to its original shape when the forces exerted are removed.

  • Abbreviated as E or ELAS

formula

\(E = \frac {  {v_l}^2   \rho  \left( 1 \;+\; Po  \right)    \left( 1 \;-\; 2Po  \right) }      { 1 \;-\; Po }  \) 

Where:

\(E\) = elasticity

\(v_l\) = longitudinal velocity

\(\rho\) = density

\(Po\) = Polsson's ratio