The Speed-Wiz Torsion Bar Calculation computes the stiffness of torsion bars. This calculation works with solid or tubular torsion bars.
Tubular bar dimensions can be specified by outside diameter and wall thickness or by outside diameter and inside diameter. The wall thickness is calculated from the inside diameter, and the inside diameter is calculated from the wall thickness.
Enter torsion bar length, arm length, outside diameter, inside diameter, and wall thickness. Calculate torsion bar stiffness.
See also the anti-roll bar calculation.