Reply To: Prescribed motion set_ displacement

[Pedram Samadian]

Hi,

Would you please provide an image that shows the model with the boundary conditions applied to different nodes? What element type and shape did you use in the simulation? Please also provide a graph showing how the rotational accelaration changes with time in those nodes.

Based on the current description of the model, the nodes of each elevation seems to be over-constrained for a pure-shear loading condition, and their applied boundary conditions need to be modified. You may find some hints regarding the required boundary conditions for such a model in the following sources:

1- Dense Granular Columns in Liquefiable Ground. I: Shear Reinforcement and Cyclic Stress Ratio Reduction

2- Finite element modelling of laterally loaded lime–cement columns using a damage plasticity model

Thanks,

Pedram