A stepped shaft ACB having solid circular cross sections with two different diameters is held against rotation at the ends (see figure Q2a). If the allowable shear stress in the shaft is 43 MPa, i) what is the maximum torque (To)max that may be applied at section C? i1) what is the angle of twist at point C (G=77.2 GPa) 20 mm 25 mm B To 225 mm- 450 mm Figure Q2a

Question #2: The 1.0-in-diameter solid steel shaft shown in figure is simply supported at the ends. Two pulleys are keyed to the shaft where pulley A is of diameter 8.0 in and pulley B is of diameter 5.0 in. (1) Determine the reaction forces (2) Draw the shear force and bending moment diagrams (3) Draw the torsion diagrams 300 lbf 1 dia. 5 dia. 50 lbf 8 dia. 470 lbf 6 00 70 lbf

A hollow aluminum tube used is a roof structure has an outside diameter d2=70mm and inside diameter d1= 50mm. The tube is 2.5m long and the aluminum has a shear modulus of G=28 GPa. a.) If the tube is twisted in pure torsion by torques acting at the ends, what is the angle of twist in degrees when the max shear stress is 50MPa? b.) What diameter 'd' is required for a solid shaft to resist the same torque with the same maximum stress?

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Could you answer quickly pls? ( course: strength of materials 1)

1- A 60 Ib box is held on a smooth incline by a rope passing over the surface of contact with the coefficients of static friction of 0.25. Find (a) the tension on the rope and (b) the magnitude and location of the normal force exerted on the box by the plane. 40° 15 in. 60 Ib 12 in. 30°

A shaft ABCD is supported by a clamp at point A and is subjected to point torques at B, C and D, as shown in the figure. The shaft has variable cross-section and is solid in segments AB and CD and hollow in segment BC. The lengths and diameters of each segment are shown in the figure. Assume that the deformation is linear elastic and take the shear modulus of elasticity G = 12.1 × 10° psi. a) Using method of sections, plot the torsion moment diagram. b) Find the angle of twist for the free end (point D) with respect to the fixed support at A, QAD and the angle of twist for point C with respect to the fixed support at A, QCA. Find both angles in degrees. d₁ = 4 in d20 3.5 in, d2=2.5 in d3 = 3.0 in 25 kip-in 20 kip-in 10 kip-in A 20 in B с D ++ 25 in 30 in

The shaft in Figure below consists of a 3-in. -diameter aluminum segment that is rigidly joined to a 2-in. -diameter steel segment. The ends of the shaft are attached to rigid supports, Calculate the maximum shear stress developed in each segment when the torque T= 10 kip.in is applied. Use G = 4×106 psi for aluminum and G = 12×106 psi for steel. Aluminum 3-in. diameter 6 ft T Steel 2-in. diameter 3 ft

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