The steel (G=79GPA) circular cross-section stepped shaft in figure 1 below is fixed to a rigid support at A and has a torque of 2kN.m applied at D. The shaft is hollow between A and B and solid for the remainder. Calculate the angle of twist at D. 2kNm 0.025m 0.035m 0.025m 0.05m 0.03m 0.04m A В C D Figure 1

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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.