How can an SS4 boundary condition be implemented on a cylinder in Abaqus?

01 January 1970 1 4K Report

I am trying to define boundary condition in a cylindrical coordinate system in Abaqus. I have to implement an SS4 boundary condition defined as:

1. displacements: u (axial) = v (circumferential) = w (radial) = 0

2. moments: Mx (bending moment about circumferential axis) = 0

Point (1) seems simple enough, but I am confused about point (2). I'm not sure how this is reflected in restrictions on rotations about the axes.

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