Erik Kostson
Ansys Employee

Hi

We do not have to use hex8 solid185, the default is hex20 solid186 which you use - I just showed it in my tutorial because it helps when models are large (less dof and nodes with hex8 solid185).

If you want to use it still see image 7 or slide 8 called slab for the settings (El. Order = Linear)

All the best

Erik