A crank loaded by a force F 1300 N that causes twisting and bending of a 20 mm -in-diameter shaft. (a) Draw separate free-body diagrams of the shaft AB and the arm BC, and compute the values of all forces, moments, and torques that act. Label the directions of the coordinate axes on these diagrams. BC and indicate where these act. (b) Locate a stress element on the top surface of the shaft at A, and calculate all the stress components that act upon this element. (c) Determine the maximum normal and shear stresses at A.

A crank loaded by a force F 1300 N that causes twisting and bending of a 20 mm -in-diameter shaft. (a) Draw separate free-body diagrams of the shaft AB and the arm BC, and compute the values of all forces, moments, and torques that act. Label the directions of the coordinate axes on these diagrams. BC and indicate where these act. (b) Locate a stress element on the top surface of the shaft at A, and calculate all the stress components that act upon this element. (c) Determine the maximum normal and shear stresses at A.