Mechanical equilibrium

Understand the Mechanical equilibrium relationship used by Piezoelectricity.

Where to find it

Piezoelectricity → equations

How to use it

Compare the terms, signs and units with your intended physical assumptions before choosing model inputs.

Result

Equation: \nabla\!\cdot\boldsymbol{\sigma}+\mathbf F=\rho\,\ddot{\mathbf u}.

Troubleshooting

The equation describes the model assumptions; it is not a separate editable boundary condition. Check the parent physics page for setup and limitations.