# How is this torsion?

by Femme_physics
Tags: torsion
PF Patron
HW Helper
That is really big, indeed. Sorry for my response also being of the same order of magnitude in size. I want to point out that in your formula $ρ_s = F/\Sigma l$, that is the formula for the vertical shear in the weld in units of force per length of weld. It should not be confused with the shear stress in the beam. As has been pointed out, both the beam and welds are subject to bending and shear stresses from forces and and moments. Both the beam and weld must be designed accordingly, so don't confuse the 2.