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interaction for a beam element embedded in a 3D solid block

Submitted by Ehsanizadi_civil on

Hi everyone,

 I am trying to model a beam element (which is supposed to work as a pile) embedded into a 3D block solid of soil.

the beam element (pile) is supposed to have 2 interfacial interactions; 1) tangential and normal contact at the end of beam element , 2) tangential and normal contact on the beam circumference. 

could anyone explain how to define this type of interaction?

I really appreciate that.

-Ehsan