A copper strip (Ec=105 GPa) and an aluminum strip (Ea = 75 GPa) are bonded together to form the composite beam shown. Knowing that the beam is bent about a horizontal axis by a couple of moment M = 33 N-m, determine the maximum stress in the aluminum strip and in the copper strip. Aluminum Copper 24 mm 6 mm 1 6 mm The maximum compressive stress in the aluminum strip is The maximum tensile stress in the copper strip is MPa. MPa (include a negative sign).

Q: An aluminum alloy [E = 73 GPa; v = 0.33; a= 23.0 x 10-6/°C] plate is subjected to a tensile load P.…

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Q: An aluminum alloy cylinder with a diameter of 76 mm and a height of 150 mm. is subjected to a…

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Q: The brass shell (ab = 20.9 × 10-6/°C) is fully bonded to the steel core (as = 11.7 × 10-6°C).…

A: Step 1:Step 2:

Q: Problem 2: A bronze bar is fastened between a steel bar and an aluminum bar as shown. Axial loads…

A: Est=200GPa Eal=70GPa Ebr=83GPa Overall deformation= 3mm

Q: 2. The Goodman diagram relates oa and om for fatigue failure after a specific number of cycles N₁,…

A: Given,   Fatigue strength under zero mean stress , σa(0) = 0.45 σTS   Tensile strength, σTS = 375…

Q: The failure stress of a homogeneous steel bar having a diameter of 10 mm is 250 MPa. Using a factor…

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Q: An extruded polymer beam is subjected to a bending moment M. The length of the bear is L = 500 mm.…

A: Given data  Allowable tensile bendig stress = 18 MPa  Allowable compressive bending stress = 9 MPa

Q: A copper bar is of uniform cross-section and is rigidly attached to the walls as shown. The rod is…

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Q: The composite bar shown is rigidly attached to the two supports. The left portion of the bar is…

A: cross-sectional area of copper bar (Ac) = 80 cm2cross-sectional area of aluminium bar (Aal) = 20…

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.