Discussion Forum

Hi, My name is Omar. I have been trying to model a hollow pile foundation surrounded by sand with internal friction angle, dilation angle and cohesion using solid mechanics physics. In order to add these paramrters, I have to use soil plasticity under Linear Elastic Material. Moreover, in order to model the interface between the pile and the sand I used contact pairs with friction along the shaft to add the tangential stiffness and contact pairs at the bottom of the pile to add the normal stiffness using penalty factor.

The problem is that when I run the model I have received the error message shown below. I recognized that the soil plasticity and the contact pairs do not work with each other because when I disable the soil plasticity the model was solved but with presence of the soil plasticity it dosen's solve.

I need to apply both in my simulation the soil plasticity to apply Mohr-Coloum failure criteria for the sand and the contact pairs to model the interface. Could you please suggest me what should I do in this case?

Thank you for your attention.