Torsion formulas

Torsion of Closed Thin-Walled Sections
Shear stress due to torsion in a thin-walled noncircular shell can be calculated as follows (Lindeburg 2003):

\tau = \frac{T}{2At}

where


 * \tau ... shear stress
 * T ... applied torsion
 * A ... area enclosed by the centerline of the shell
 * t ... sheel thickness