Reply To: Geopolymer modeling Problem

[Maciej Wojdowski]

Hi, Armin, many thanks for the reply. 
the picture shows the testing apparatus.
 
So I,ve tried modeling also the bottom plate 


And bottom plate of the testing machine is fixed, and cylinder is just lying on top with contact as below: 

But still this gives me wrong results. 
I think modeling symetry is gonna be a good idea, maybe the solver will run faster. Do you know also if i specified material correctly and if I correct my mistakes in boundry conditions, the material data will still be sufficient to obtain 10-20% similarity in results? 
Maybe instead of modeling the bottom plate of the apparatus I should do place "displacement" for the bottom part of the cylinder and free x,y directions and fix only Z?