1. The problem statement, all variables and given/known data I think I've solved this properly, but if you guys wouldn't mind verifying my work and pointing out any errors (if there are any), it would be much appreciated. I've already calculated the equivalent force-couple system at the plane of the elemental stress block, which is shown above. That's completely right, I know of it :). Now, I need to solve for the components of normal and shearing stress associated with that elemental stress block. 2. Relevant equations [tex]\sigma[/tex]Axial = P / A [tex]\sigma[/tex]Bending = Mc / I [tex]\tau[/tex]Shear = VQ / IT [tex]\tau[/tex]Torque = Tc / J We already are given: A = 12.57 in^2 J = 25.13 in^4 I = 12.57 in^2 Q = 5.33 in^3 D = 4 in 3. The attempt at a solution Using the equations above, I've calculated: [tex]\sigma[/tex]Axial = 477.46 psi [tex]\sigma[/tex]Bending = 12,414.09 psi [tex]\tau[/tex]Shear = 106.10 psi [tex]\tau[/tex]Torque = 5729.58 psi Did this all with excel :). Do those answers sound right? The next step which I am having difficulty with is calculating the [tex]\sigma[/tex]X, [tex]\sigma[/tex]Y, and [tex]\tau[/tex]XY. I understand that I'm just using super position for this, but I'm not sure whether to add or subtract the two. Thanks!