Reply To: Force Analysis in Static Analysis

[mjmiddle]

Are you using frictional contacts? They will need a normal pressure to develop any tangential frictional force. I don't see anything in your model to do that. If the outer cylinder radius is slightly smaller than the inner cyinder radius, then you have a press-fit type of model that will have a normal force on the contacts.

Or if you fix one end of the inner cylinder, then the force will cause the cylinder to expand and there will be a normal force on the contacts. Of course, the inner cylinder is already constrained from motion, then, which may not be the intent in your model.