I just doing a simulation for liquefaction on gentle relief slope with the dynamic load is 50s which consist 0.01s each data. I use PM4Sand for the constitutive model applied on the sand layer also HS Small for the clay. Currently I set the Max steps…

I want to apply (input) a dynamic load of sinusoidal wave which is having a frequency of 20hz and amplitude of 5m/s2 at the base of model how can I apply that? Secondly, how can I use UBC3DPLM model for liquefaction and how can I get pre and post liquefaction…