A cylindrical rod 500 mm long, having a diameter of 12.7 mm, is to be subjected to a tensile load. If the rod is to experience neither plastic deformation nor an elongation of more than 1.3 mm when the applied load is 29,000 N, which of the four metals or alloys listed below are possible candidates? Justify your choice(s). Material     Modulus of Elasticity (GPa ) Yield Strength (MPa)   Tensile Strength (MPa) Aluminum alloy      70                                   225                               420 Brass alloy            100                                    325                               420 Copper                  110                                  210                               275 Steel alloy             207                                  450                               550

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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.