A steel shaft transmits 30 kW of power at 10 Hz. Determine the smallest safe diameter of the shaft if the shear stress τmax is not to exceed 50 MPa and the angle of twist θ is limited to 5°in a length of 4 m. Use G = 70 GPa

The solid steel shaft has a diameter of 35 mm. Determine the absolute maximum shear stress in the shaft.

The steel shaft is formed by attaching a hollow shaft to a solid shaft. Determine the shear stress (in Pa) in the hollow shaft using the maximum torque T that can be applied to the ends of the shaft without exceeding a shear stress of 70092104 Pa and angle of twist of 2.25ᴼ for the whole shaft. Use G = 83000000000 Pafor the shaft, x = 2.43 m, and y = 1.89 m. Round off the final answer to two decimal places.

Q1: The shaft BC is hollow with inner and outer diameters of 100 mm and 120 mm respectively. Shaft AB and CD are solid and of diameter d. For the loading shown determine the maximum and minimum shear stress in shaft BC. 0.9 m 0.7 m d 0.5 m A 120 mm T = 10 kN.m i В TB = = 20 KN.m 1 C D Tc = 30 KN.mi Tp = 6 kN - m Figure Question1