Answer to Question #191914 in Mechanical Engineering for luke

Question

A shaft composed and set up with different materials is shown with a torque applied. Each of the parts has their own equivalent torsional spring constant. How are these parts connected?

Answer 1

Each cross-section rotates as a rigid entity about the axis of the shaft. Although this conclusion is based on the observed deformation of a cylindrical shaft carrying a constant internal torque, we assume that the result remains valid even if the diameter of the shaft of the internal torque varies along the length of the shaft.