14.23 The steel pipe AB has a 102-mm outer diameter and a 6-mm wall thick- ness. Knowing that arm CD is rigidly attached to the pipe, determine the principal stresses and the maximum shearing stress at point K. y 200 mm 6 mm 51 mm 10 kN C 150 mm H K Fig. P14.23 B For Problem #14.23, the 10 kN force creates a torque in pipe AB equal to 2,000 Nm in the positive y direction (RHR). This torque creates a shearing stress at points H and K of t = 24.37 MPa. If you cut a transverse section through the pipe at H and K, and look down on the pipe remaining below this section, that shearing stress will act in the counter-clockwise direction.