T torque is applied to the part made of Aluminum and Steel fixed at A and B points. The diameter of the aluminum shaft is D1, the diameter of the steel shaft is D2; Find the torques that will occur at points A and B and the maximum shear stresses that will occur.

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Q: A circular steel shaft of diameter 30 mm is subjected to a torque of 60 N-m. Calculate the angle of…

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Q: Problem 3

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Q: Problem 1

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A: Given: ϕA=ϕA/D=-0.382radϕA/B=0.358radϕB/C=-0.233rad

Combined Loading

Any functioning component, such as machine parts, structural members, pressure vessels, and so on, are all under the influence of more than one force. When anybody is under the influence of more than one force such as shear forces, bending moments, axial forces, torsion, and so on, then such body is said to be under combined loading. A very practical example of combined loading is the crankshaft of an internal combustion engine (IC engine). The crankshaft of the IC engine is under high rpm, which is caused due to the torsional forces. Due to the presence of piston, counterbalances, and internal imbalances, the crankshaft experiences lateral forces and due to the rise in temperature, the crankshaft undergoes thermal expansion, which pulls the crankshaft along the axial direction and lateral direction. The presence of unbalanced loads along the periphery of the crankshaft also induces a bending moment.