Figure Q1 shows a 1.4 m long steel shaft that consists of a hollow segment AB and a solid segment BC. The shaft is fixed at C and is subjected to two external torques TA and TB at points A and B, respectively. The torque developed at the fixed end C is 750 kN.m in the direction as indicated in Figure Q1. Given G=75 GPa. (a) Determine the values of TA and TB if the corresponding angle of twist of end A is zero. (b) Calculate the maximum shear stress developed in the shaft and locate where it's occurred (c) Give your comment whether the shaft will fail or not if the allowable shear stress of the shaft is 75 MPa.

3) Two circular shafts (shown in Figure) made of the same material and have the same length are subjected to a torque Tequals 150 lb.ft, the angle of twist for the hollow shaft equals that of the solid shaft. A-1/3 C-5.4 B-1 D-3 D=10 in solid shaft D=10 in d=9 in O hollow shaft

The splined ends and gears attached to the steel shaft are subjected to the torques shown in Figure 4. Take G = 75 GN/m². (i) (ii) Determine the location along the 40 mm diameter shaft where the shear stress is largest and plot the variation in shear stress from the shaft centre to its outer surface. Determine the angle of twist of sections C, D, and B relative to end A by producing a graphical plot of the variation of angle of twist from end A to end B (wind-up diagram). 300 N-m 500 N-m A www. 300 mm 200 N.m MAAN 400 mm Figure 4 500 mm 400 N-m

Please answer in proper units

a) Figure Q5 shows a 1.4 m long steel shaft that consists of a hollow segment AB and a solid segment BC. The shaft is fixed at C and is subjected to two external torques TA and TB at points A and B, respectively. The torque developed at the fixed end C is 750 kN.m in the direction as indicated in the figure. i) Determine the values of TA and TB if the corresponding angle of twist of end A is zero. ii) Calculate the maximum shear stress developed in the shaft. Give your comment whether the shaft will fail or not if the allowable shear stress of the shaft is 75 MPa. 750 kN.m 1.4 m 0.8 m C 160 mm B Тв 200 mm- ΤΑ Section a-a Figure Q5 = [Ans: a) i) T 332 kN.m, TB=1082 kN.m, ii) TCB,max = 60 MPa, TBA,max=45 MPa]