A steel wire with a diameter of d = 1/16” is bent around a cylindrical drum with a radius of R = 36”. (a) Determine the maximum normal strain in the wire. (b) What is the minimum acceptable radius of the drum if the maximum normal strain must remain below yield? Consider an elastic modulus of 30000 ksi and yield stress of 100 ksi. (c) If R = 36”, what is the maximum acceptable diameter of the wire if the maximum normal strain must remain below yield?

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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.