My model consists of a wall that is made of a sandwich composite panel where I have a solid geometry made of Polyethelyne foam (flexible) as a core and shells made of carbon fiber on both sides of the core. The shells are modelled as 2D where a thickness as well as fiber direction has been defined in ACP.

In addition there are windows installed in the wall. Silicone rubber has been used as sealant between the window glass and the wall.

When I check the element types I can see that both Tet and Hex elements are used, but the majority are Tet elements.

The element order is set to program controlled.

I will post some images as soon as it is possible to insert/attach files.