Creating and editing geometric restrictions

You can create geometric restrictions that place boundaries on the changes that the Optimization module can make to the topology of the model. Geometrical restrictions include frozen regions from which material cannot be removed and manufacturing constraints, such as restrictions on undercuts that would prevent the optimized model from being removed from a mold.

Related Topics
Creating a geometric restriction in a topology or sizing optimization
Creating a geometric restriction in a shape optimization

  1. From the main menu bar, select Geometric RestrictionCreate.

    The Create Geometric Restriction dialog box appears.

    Tip: You can initiate the Create procedure in two other ways:

    • Click Create in the Geometric Restriction Manager. (You can display the Geometric Restriction Manager by selecting Geometric RestrictionManager from the main menu bar.)

    • Click the tool in the Optimization module toolbox.

  2. From the Create Geometric Restriction dialog box that appears, enter the name of the geometric restriction.

  3. Select the type of geometric restriction to apply, and click Continue.

  4. From the viewport, select the region to which the geometric restriction will be applied, or click Done to apply the geometric restriction to the entire model.

    By default, Abaqus/CAE allows you to select all of the model. To select faces or cells, use the Selection toolbar to change the type of object that you can select to Face or Cells. For more information, see Filtering your selection based on the type of object.

    If you would rather select from a list of existing sets, do the following:

    1. Click Sets on the right side of the prompt area.

      Abaqus/CAE displays the Region Selection dialog box containing a list of available sets.

    2. Select the set of interest, and click Continue.

    Note:

    The default selection method is based on the selection method you most recently employed. To revert to the other method, click Select in Viewport or Sets on the right side of the prompt area.

  5. When you have finished selecting the geometric restriction region, click Done in the prompt area. For more information on selecting objects, see Selecting objects within the viewport.”

    The Edit Geometric Restriction dialog box appears. The content of the dialog box depends on the type of geometric restriction you are creating.

  6. Click OK to save your data and to exit the editor.