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Topology Optimization with Composite Material

Hello!

I would like to run a topology optimization of a monocoque which is made out of composite material. There are many tutorials about the optimization of composites, but just the steps: Size, Free Size and Shuffling.

I thought PCOMPP would be nice for modelling. But this Prop is not supported by Topology Optimization.

What is the best way to solve this Problem and run a topology optimization with composites?

Best regards

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Altair Forum User

Hi Domi,

Maybe you can use a PSHELL property with MAT8 card refered or use SOLID property with MAt9 or MAT9ORT.

Still, I suggest you to run a Free size optimization instead of topology. Free size looks thickness distribution of the shell elements

Altair Forum User

hi and thank you for your answer!

Yes, but I would like to start with the topology optimization. Free Size is more complex too..

I have seen that PCOMP(G) is supported for topology optimization. Are there any tutorials about this?

Altair Forum User

There are tutorials for modelling PCOMP(G).

Rahul Rajan_21763

Please refer attached manual on Optistruct for composites.I believe this would help.

Unable to find an attachment - read this blog

Altair Forum User

Thank you for your help!

But because of my complex layer composition is using PCOMP(G) very time-consuming. Why is it not possible to run a topology optimization with PCOMPP?!

In the user manual is mentioned that PCOMP(G) and STACK (PCOMPP) is compatibel with topology optimization.

But not in HW:

<?xml version="1.0" encoding="UTF-8"?>

Rahul Rajan_21763

See attached screenshot for STACK in DTPL card.

<?xml version="1.0" encoding="UTF-8"?>