Hello,anyone
In expansion joint modeler,do the angular stiffness have relations with bending stiffness or torsion stiffness?

regards,api2004

Typically, bending and angular mean the same thing.

thanks!

regards,api2004

The term angular alludes to rotations. Moments about various axes can be described in terms of angles of rotation. Angular stiffness is the stiffness that resists these rotations. Since there are three mutually perpendicular local axes, two of the possible moments are bending moments and the third (about the centerline of the pipe or expansion joint) is a torsional moment. In modeling expansion joints, we typically assume the resistance to rotation about the joint's longitudinal centerline is very great (ir has a large stiffness).