Small-strain kinematics

Understand the Small-strain kinematics 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: \boldsymbol{\varepsilon}=\tfrac12\!\left(\nabla\mathbf u+\nabla\mathbf u^{\mathsf T}\right).

Troubleshooting

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