A steel shaft ABC connecting three gears consists of a solid bar of diameter d between gears A and B and a hollow bar of outside diameter 1.25d and inside diameter d between gears B and C. The shear modulus of elasticity for the shaft is 80 GPa. a) What is the minimum permissible diameter d if the allowable shear stress in the shaft is 80 MPa? b) What is the minimum permissible diameter d if the angle of twist between any two gears is limited to 4.0º?

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Pressure Vessels

The term pressure vessel refers to a closed container that contains gas or liquid at a different pressure than environment pressure. The pressure vessels have a wide scale of applications in our day-to-day lives and other industrial places. Some common examples of pressure vessels are gas cylinders, autoclaves, compressor vessels, etc.