Exercise

1. Figure 4.40 shows a three-segment shaft used to transmit the two payload torques applied at joints B and C. The shaft is composed of AISI 1010 steel with a shear modulus of 80 GPa. The length LAB = LCD = 200 mm, while LBC = 240 mm. Likewise, segments AB and CD are of diameter 25 mm, while segment BC has a diameter of 50 mm. Use a SOLIDWORKS simulation to evaluate the maximum shear stress in the shaft and then determine the angle of twist of joint C.

   Figure 4.40 – A stepped shaft with payload torques

2. Figure 4.41 shows a shaft acting as part of the rotating component of a helicopter. The shaft is under the effect of a combined axial and torsional load, as indicated. The material of the shaft is aluminum alloy 6061, while its cross-section is made of a tube with internal and external diameters of 34 mm and 80 mm, respectively. Use a SOLIDWORKS simulation to determine the maximum shear stress and the maximum von Mises stress.

Figure 4...