Kinetic energy density
= Kinetic energy density
The kinetic energy density of a continuum with mass density $\rho$ and velocity $\mathbf v$ is $\rho|\mathbf v|^2/2$. For a displacement field, the material velocity is its time derivative.
= Kinetic energy density
The kinetic energy density of a continuum with mass density $\rho$ and velocity $\mathbf v$ is $\rho|\mathbf v|^2/2$. For a displacement field, the material velocity is its time derivative.