Related Resources: calculators

Torsional Stiffness Solid Section Equation and Calculator

Machine Design and Engineering

Torsional Stiffness of Any Solid Section Equations and Calculator

Torsional Stiffness of Any Solid Section Equations and Calculator

kt = ( G S4 ) / ( 4 π2 l Ip )

Where:

kt = Torsional Stiffness of Plate ( lb-in/rad ),
G = Modulus of Elasticity in Shear (lb/in),
l = Length (in),
S = Cross Section Area (in2),
Ip = Polar Moment of Inertia (in4)

Related:

Reference Harris, Shock and Vibration Handbook