A steel rectangular bar of length 300 mm having cross sectional dimensions 25 mm wide by 50 mm deep and it is subjected to a forces as shown in Fig Q1. Assume Poisson's ratio 0.25 and Young's modulus 200 GPa. Find: (i) the change in dimensions (ii) the change in volume and (iii) bulk modulus and modulus of rigidity. 1000 kN 400 kN- 50 mm 400 kN 300 mm 25 mm 1000 kN

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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.