SaiD
Ansys Employee

Hello,

Maybe you can try reducing the amount of compression that is being applied to the model? That way you simulate a small strain-range and you can probably pin point the strain at which the stresses become equal to the yield stress. I am assuming this is what consitutes failure in your case. If not, and the failure criteria is different, you might have to include a plasticity model to accurately capture the behavior of the lattice at higher strains.