Reply To: Geopolymer modeling Problem

[Armin]

Thanks Maciej,

The contact type is set to "bonded" in your screenshot. I think it is more realistic to switch it to "Frictional" with an appropriate coefficient of friction. The bonded type will not allow the faces of the sample to slide relative to the compression plates and will have a similar effect as using fixed support you used earlier.  

Since you're considering the bottom plate, I think it is more realistic to also consider the top plate with similar contact properties. You may assume the stiffness behavior of the plates to be "rigid" to reduce the computational time.