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Create and Define the Nonlinear Adaptive Region
To apply Geometry Based Adaptivity:
On the Environment Context tab: click Conditions>Geometry Based Adaptivity. Or, right-click the Environment tree object or in the Geometry window and select Insert>Geometry Based Adaptivity.
Specify the Scoping Method.
Note: You can scope multiple Geometry Based Adaptivity objects to the same entity to give yourself more control on multiple load step settings that are local to the Geometry Based Adaptivity condition.
Specify the Criterion property: options include and . Following your selection, properly specify the associated properties.
Note:Once you select an option for the Criteria property, the Analysis Settings category Adaptivity Remeshing Controls becomes available and you may modify the available properties as needed.
Refinement via general remeshing is supported with energy-based (NLADAPTIVE,,,ENERGY), or position-based (NLADAPTIVE,,,BOX) criteria only.
When the condition is defined, the Graph and Tabular Data windows provide a right-mouse click option to (or ) the condition for a desired load step. No remeshing will occur at the deactivated load step as the NLADAPTIVE command is set to OFF. The default setting is Activated. For a restart analysis, the application sets the newly added Geometry Based Adaptivity to Deactivated.
Note: You may wish to review the Activation/Deactivation of Loads topic in the Step Controls section of the Help. The Geometry Based Adaptivity condition is displayed in the graph for the Analysis Settings object.
View Changed Mesh Results
Once the solution process is complete, you can determine if the mesh changed using one of the following methods:
Select the Solution object or a Result object, the Tabular Data window displays the substeps with a changed mesh (Changed Mesh column = ).
Select the Solution Information object and set the Solution Output property to . A chart displays. Remesh Points are shown by solid orange vertical lines.
Create a User Defined Result (using the PNUMELEM Expression) to view the new elements that have relatively larger element identities than the original element identities. You can duplicate this result and specify a ( property) for a result prior to a remesh and one at a remesh point, and using the Viewports feature, directly compare the (before and after) elements in the graphics window.