Problems with Free Size optimization constraints and pattern grouping

Hello!

 

I'm having troubles setting up a free size optimization, although I've done it successfully before. 

 

First of all, I have a problem with the core thickness: I have defined core thickness (tried both by ply and by angle), but I still get the following error:

 

Error #859

The following constraint on DSIZE may be incorrectly defined because it does not involve any designaable (or existent) plies in some areas of the laminate. This may cause constraint violation throughout the optimization process

CONST for PLY 3 

 

The same happens for ply 2.

 

I also got another error on the way:

 

Pattern grouping or pattern repetition is requested on DSIZE card 1 but referenced PCOMP properties do not have the same number of plies. Therefore, pattern grouping and pattern recognition will be ignored.

 

Could you please ry to help me fix the errors? I checked the ply definition and as fas as I can see, it looks fine. I defined the plies using sets. 

 

Thanks in advance.

 

Question to the admins: do you see my attached files or do I need to insert the model explicitly in this thread?

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