If you plan to constrain a specific point on an exterior curve or surface in native mode, your part needs to include a datum point at that location. In FEM mode, you can use vertices or datum points. Be aware that point or curve constraints can introduce theoretically infinite stress or thermal fluxes in your model. For more information, see Troubleshooting Your Constraints.

You can add datum points within Creo Simulate as you define your constraints. These datum points are available for your Creo Simulate sessions only. They are not visible on your part or assembly while you are working at the Creo Parametric level.

As an alternative, you can add datum points to your model in Creo Parametric before entering Creo Simulate. In the latter case, the datum points are available for all your Creo Parametric sessions as well.

Return to Guidelines for Structure Constraints.