Torsion

#Physics

$\displaystyle \theta=\frac{\tau L}{GJ}$

• $\displaystyle \theta$ is the angle of twist on one end of a uniaxial rod fixed at the other end
• $\displaystyle \tau$ is the torque applied to the rod
• $\displaystyle L$ is the length of the rod
• $\displaystyle G$ is the shear modulus
• $\displaystyle J$ is the Polar Moment of Intertia