solid.balance

Understand the solid.balance relationship used by Equation contract.

Where to find it

Equation contract → equations

How to use it

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

Result

Equation: inner(strain(test(solid.u)), stress(solid.u)) - dot(test(solid.u), solid.F).

Troubleshooting

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