The axial stiffness can be used to define a nonlinear spring in axial direction. An axial clearance can be used to define clearance or pretension, the data in the table has to start with (0, 0). If a diameter is defined, the axial stiffness will act as distributed stiffness on this diameter, therefore the support can also support tilting moments if loaded axially.
The axial stiffness will be set to a very large value behind the last point for displacement in the table.
