Two prismatic bars are rigidly fastened together and support a vertical load of 45kN. The upper bar is of steel having mass density 7750 kg/m^3 , length 10m and cross-sectional area 65 cm^2. The lower bar is of brass having mass density 9000kg/m^3, length 6m and cross-sectional area 50 cm^2. Determine the maximum stress in each material. For steel Es= 200 GN/m^2 and for brass Eb= 100 GN/m^2.

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Material Properties

Construction in civil engineering demands high strength, durability, and longevity. These targets can be achieved by better design and analysis, along with the correct choice of materials. Different materials have different properties and hence, they respond and performs differently under the various condition of external loadings. It is therefore a critical task of an engineer to select the right material based on the property that the material is supposed to function in real-time. When speaking about the property, there are different categories of material properties like chemical property, physical property, mechanical property, electrical property, magnetic property, thermal property, etc. These material properties form the basis of material selection in various applications.