add d2udt2 second time derivative Kernel for full dynamical phase field models

mangerij / ferret

Open-source MOOSE application "Ferret" for parallel mesoscale simulations of ferroic and related electronic materials

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add d2udt2 second time derivative Kernel for full dynamical phase field models #332

Closed mangerij closed 4 months ago

mangerij commented 4 months ago

Need a Kernel that computes

\mu d^2 P / dt^2 where \mu is an isotropic scalar related to the inertial effects relevant at excitation frequencies close to the phonon resonances (in the THz band)