PROBLEM 1: The vertical member consists of 2 (two) unequal legs with long legs back to back are welded to the 8 mm thíck gusset plate. Size of angle = 75 mm x 50 mm x 6 mm thíck. Area of two angles = 1535 mm2 Weld thickness = 5 mm Fy = 248 MPa F= 400 MPa U= 0.82 (reduction factor) Fw= 485 MPa (E 70 xx electrodes) y = 25 mm O Determine tensile strength of the angular section. ® Determine the length of 5 mm fillet weld Li so that each fillet weld is equally stress in shear. Determine the length of 5 mm fillet weld L2 so that each fillet weld is equally stress in shear.

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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.