I don't think this can be done, if I'm wrong please delete.
Why can't a model/assembly be created as an iPart/iAssembly, set up a FEA simulation on the parent part, then let Inventor run a batch simulation over night on all the children.
And produce reports so the results can be seen the next day.
I don't think it would be necessary to create all the child parts, although that might be necessary.