Creo Simulate > Additional Information > Background Information > Long-Term Limitations
  
Long-Term Limitations
When you work with Creo Simulate, you should be aware of various limitations that affect the way the product operates. To learn about limitations, read the following:
Topic
General Limitations
Model and Analyses Limitations
General Limitations
If you use the Set Working Directory command on the Creo ParametricFile menu to change directories during a Creo Simulate session, be aware that Creo Simulate may still refer to the original directory for certain operations.
For example, assume you have a study results directory named study in two different directories—a and b. If you were working in directory a and decided you wanted to review the study results in directory b, you would normally use the Set Working Directory command to switch directories. However, although Creo Simulate switches directories, it still sees the study results directory that resides in directory a, and these would be the results the software would display unless you specifically select directory b when defining your result windows.
Model and Analyses Limitations
Following is a list of limitations that covers the models and analyses:
There are limitations in the ability of Creo Simulate and Creo Parametric to share materials.
Native mode and FEM mode of Creo Simulate share some, but not all, modeling entities.
For assemblies, you cannot apply loads or constraints to a merged surface unless you first define a region to separate the unmerged portion of the surface.
You cannot define compressed shell midsurfaces for structural assemblies unless you first start Creo Simulate from part mode and predefine pairs for each of the parts in the assembly. You then leave part mode and start Creo Simulate from assembly mode to add modeling entities and analyze the assembly as a whole.
You cannot create beam–face links.