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"spring" contact to simulate a flexible media between to rigids. How?

"spring" contact to simulate a flexible media between to rigids. How?

"spring" contact to simulate a flexible media between to rigids. How?

(OP)
this fell on me as an urgent task.
ANSYS Mechanical v. 12.1
I've got a long metal spiral pipe covered by a thick layer of "rubber". As pipe deforms (Thermal. This I did.) this thing touch a rigid wall and then rubber deforms.

I want to setup a linear force vs. distance between pipe and a wall to represent rubber compression.

How to do it?
I tried a spring, but it's attached to points, so when pipe slides merely slides along a wall a force occures. I need forse as a function of distance between a wall and a pipe not between some points.
 
Is there a way to setup some contact boundary condition to simulate this?

I will greatly appreciate any help. This is an urgent and important for me.

Please, be specific about all selections and options as I'm no expert in Ansys.
Thank you

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