The lower ends of the three bars shown in the figure are at the same level before the rigid homogeneous W = 100 kN block is attached. The properties of the bars are shown in the table. Steel Bronze Length, L Area, A Modulus of elasticity, E Coefficient of thermal expansion, a 1.00 m 500 mm2 1.60 m 900 mm2 200 GPa 83 GPa 11.7x10 /°C 18x10-6 /°C Bronze Steel Steel A B C W The temperature of the bars is then increased by 80°C. The block is assumed to remain horizontal after all deformations have occurred. Which of the following most nearly gives the stress developed in the steel bar?

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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.