A compressive test is performed on a specimen of hot-rolled and annealed stainless steel alloy 304 (304 SS). Its rectangular cross section is initially 11 mm wide and 6.2 mm thick. When a compressive force (F₂) of -11798.6 N is applied, the resulting instantaneous gauge length (li) is 49.9552 mm. A. What is the applied, instantaneous, engineering compressive stress (0₂) in MPa? B. What is the original gauge length (l。) in mm? C. What are the deformation elongations in the lateral (cross-section) plane (Aw; and At;) in mm?

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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.