1.2 Figure 1 show a compound bar made of the aluminum alloy with three different cross sectional. The bar is subject to a tensile load of 40KN. Take E = 69 GPa, Determine the stress in each section and the total elongation of the bar %3D 30 mm 40 mm 50 mm 40 kN 40 kN 10 mm 20 mm

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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.