Add a Deforming Domain node (
) to specify that the shape of the selected domains should be governed by the domain boundaries, which are in turn controlled either by explicit deformed mesh boundary condition nodes, or by implicit continuity constraints requiring that a deforming domain must follow the shape of adjacent domains, or stay fixed if there is no adjacent domain. Explicit boundary conditions take precedence over implicit constraints.
The Settings window for the
Deforming Domain node contains the following sections:
For the mesh smoothing, choose smoothing type from the Mesh smoothing type list:
Laplace,
Winslow,
Hyperelastic, or
Yeoh (the default). For
Yeoh, you can enter a
Stiffening factor C2 which controls the amount of nonlinear stiffening of the fictitious solid. Setting
C2 to
0 makes the fictitious material neo-Hookean. If desired, you can change the
Volumetric strain measure from
Linear to
Logarithmic. This makes the elements more resistant to compression.
When the geometry shape functions contain higher-order polynomial terms, you can penalize certain undesired higher-order modes of deformation by selecting HuHu or
HuHu-LuLu under
Stabilization.
HuHu stabilization steers the deformation of elements in the direction of a linear transformation of the original shape, while
HuHu-LuLu is designed to allow also regular bending and quadratic compression. The
Tuning parameter setting allows some control over the amount of stabilization.