Your assessment is correct that you can model it the way you want for a trusscore sandwich. The missing link is that HyperSizer does not have the ability to pull up the object laminate from the object loads tab if you are using a hyperlaminate. I think HyperSizer is modeling the laminates correctly in each piece, however, when you try to pull up the laminate from the object loads tab, it is not displaying correctly.
There is a foolproof way to see the laminates that HyperSizer is analyzing for each piece of your structure.
First, analyze just a single component in HyperSizer.
Next, in the sizing form, go to the Options MENU (not the tab) and select “Material and Analysis Detail” . This will pull up an ASCII file with a tremendous amount of detail about your analysis. Search in that Ascii file for “Object_id =”
For every object, you will get a listing of the actual laminate that HyperSizer is using when it does its detailed analysis.
Take a look at this output and see if it makes sense. Its not as nice as being able to pull it up in the user interface, but it will have the correct laminates so you can verify.
One other thing. If you turn on “Generate More Detailed Reports” before you analyze your component, then that file that pulls up will have a lot of additional information including stresses and strains of each ply, stiffnesses, allowables, every margin of safety, etc.
Let me know if this helps.