2. A 10-x 10-mm key was used in a 45-mm diameter shaft of a 30 kW diesel engine rotating at 1200 rpm. Calculate the shear stress in the key and the torsional stress in the shaft. Assuming length of key to be 1.5 times shaft

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A:

Q: A UNS G10350 steel shaft, heat-treated to a minimum yield strength of 75 kpsi, has a diameter of 1-…

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A:

Q: Torque =230 N-m

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A:

Q: Describe the failure of a hollow torque tube. Calculate the forces creating the failure

A: It is asked to describe the failure in the hollow torque tube

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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.