Creation of a pressure tight geometry in Generative Design module

[ptc-567253]

Our target is to generate a pressure tight cover, closing the end of a hole (cover fixed by e.g. a circlip), and pressure is acting on the inner side of the cover.    See Picture 1:

The problem is, that as a result, the software cannot generate closed  walls / a pressure tight part / even if having a load at the middle.

 we got only a simple result like this:

 

 

Could somebody provide solution possibility (what settings we have to consider) to achive closed (pressure tight) geometry?
Thanks to all of you in advance.

[ProFeature]

Hi @ptc-567253 

You didn’t attach the model, so it’s hard to answer.

I suggest: Under design constraints, try adding rotational symmetry with a large number of instances.

I’d appreciate it if you could share the output based on the suggestion.

Good luck

[tbraxton]

Are you using generative design to generate potential solutions to this as an academic exercise? I ask as there are analytical solutions for shape optimized geometry to cap a cylindrical pressure vessel and GD is not likely to give you something that is improved over documented classical options. 

Are there loads in the boundary conditions in addition to the pressure loading that are driving you to use GD? You can also use Behavioral Modeling Extension (BMX) in conjunction with Creo Simulate structure to minimize mass and stress in the end cap.