Surface Regions—Creo Ansys Simulation
You can create surface regions that enable you to split a surface so you can perform an operation on a portion of a surface. Surface regions can then be selected just like regular surfaces. You can define simulation entities such as loads constraints and boundary conditions on surface regions. To create a surface region you must select a parent surface on which you want to create the surface region. Then choose the method to use to split the parent surface. You can use either a closed sketch or a chain of edges or curves.
To Create a Surface Region
1. From within a simulation study, click > 
Surface Region. The surface region tab opens.
Surface Region. The surface region tab opens.2. Select one of the following splitting options :
◦ Split by sketch—Click 
and select an external sketch to define the boundaries of the surface region.
and select an external sketch to define the boundaries of the surface region.Alternatively select Split by sketch on the References tab. Use the sketch collector to select an existing sketch to define the boundaries of the surface region.
To define a new sketch click Define and use the sketch tool to sketch the boundaries of the surface region.
◦ Split by chain—Click 
and select a chain of curves or edges as a boundary for the surface region.
and select a chain of curves or edges as a boundary for the surface region.Alternatively select Split by chain on the References tab. Select the chain in the model to be used as a boundary.
To define a new chain, click Details. The Chain dialog box opens.
 | When you use Split by chain, the curve or chain must lie on the parent surface that is split. If the curve is at some offset distance, the surface region is not created. |
3. Click the Surfaces collector and select the parent surface to be split.
4. Click 
to create your surface region.
to create your surface region.Refer to the Fundamentals Help for more information on chains and how to construct a chain.