1. The problem statement, all variables and given/known data 2. Relevant equations σ=pr/t (hoop) σ=pr/2t (longitudinal) τ=VQ/It 3. The attempt at a solution I have longitudinal stress and hoop stress. I'm trying to find shear stress, which should come only as a result of the 40kN from the collar correct? I'm confused with how I can get this on the pressure vessel. Would it be the same as if it were a simple rod?