A stepped shaft ACB having a solid circular cross sections with two different diameters and two different materials joined and attached at their ends, in the first section AC of aluminum has a diameter of 20 mm, length of 225 mm and G = 28x10° and in the second section CB of steel has a diameter of 25 mm, length of 450 mm and G = 83x10° The torque applied is of 1000 N - m and applied in the joint of the pieces. Determine the shear stress in both the aluminum and the steel. 20 mm 25 mm To -225 mm- - 450 mm Figure 2

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Thermal Properties of Materials

In mechanical engineering, the thermal property is represented as the physical quantity that is relevant to the application of heat. The thermal properties are evaluated by variations in any specific material due to low heat or high heat. The quantities that influence the thermal property of the materials are mass, density, temperature, and many others.