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2024-01-16

Nodal Mesh Refinements

Nodal mesh refinements affect the generation of the FE mesh. Use the nodal mesh refinement to achieve an adjusted discretization in the refinement area around the node, as it may be necessary in corner areas or when connecting members to surfaces.

Mesh Refinement Type

There are two options for the geometric shape of the refinement area:

  • Circular
  • Rectangular

The types, including parameters, are represented symbolically in the dialog graphic.

Parameters

For a circular type, define the 'Radius' of the refinement as well as the 'target FE length' in the center and at the edge of the circle. The outer FE length usually corresponds to the global mesh size.

For a rectangular type, enter the 'Side length' of the cube-shaped refinement area as well as the 'Inner target FE length'.

For circular refinements, you can use the 'FE length arrangement' to control the mesh size of the FE mesh expanding from the inside to the outside:

  • Radial: The expansion of the refinement area is uniform from the inside to the outside.
  • Gradually: The refinement is carried out step by step for areas of the same mesh size.
  • Combined: The mesh is generated by a combination of radial and gradual adjustment.

Info

Set a sufficiently large refinement radius so that no acute-angled elements are created regarding the transition from inside to outside.

Options

The refinement area around the node extends in all spatial directions (see the image Circular Mesh Refinement). If you want to include only particular surfaces in the refinement, tick the Apply only on Surfaces Nos. check box. Then, you can enter the numbers of the surfaces or define them graphically with the Select Individually button.

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