Sandwich Structure and Aluminum Foam

Hi, 
i have to make a launcher in Catia (Ariane 5 or 6). It has to be a simple cad. Basically, a cylinder with a dome. 

Now, this cylinder has to a be a Sandwich Structure Honeycomb. How can i model this type of structure?

After the honeycomb i have to change it and try in Aluminum Foam closed cells (not anymore honeycomb) and compare with the first type (weight, deformation under certain loads...).
How can i model in Catia Aluminum foam? 

I add some image 

Honeycomb



Aluminum Foam:



This are just plates but i have to implement it in cylinder geometry.


Thank you all!

Edu