Hi. I'm a third year ME student and I am confused about something. I've just started to take ME design course this semester and this is from my first hw. I solved everything but i dont know about the shear stress. since there is no torsion I wanna say there is no shear stress but i doubt that if it was the case why would the teacher ask about it detailed like this. Any help would be appreciated. thanks. ''A thick walled open ended cylinder is made of steel ( E = 200 GPa) has an inside diameter of 80 mm and an outside diameter of 100 mm. The cylinder is subjected to an internal pressure of 20 MPa. Determine the stress components sigma(r), sigma(t) sigma(l) and the maximum shearing stress at the inner and outer surfaces of the cylinder and at r = 45 mm.''