A wood beam is strengthened using two steel plates as shown in the figure below. 1 -100 mm- q= 5.0 kN/m A 3m 6 mm 150 mm The beam has simple supports and an overhang and is subjected to a point load and a uniform load as shown in the figure below. AB 7112 6 mm 12 kN Ⓡ Calculate the maximum tensile and compressive stresses of the beam. Assume that Ew = 11 GPa and E= 200 GPa. (Enter your answers in MPa. Use the deformation sign convention.) maximum tensile stress in wood MPa maximum tensile stress in steel MPa maximum compressive stress in wood MPa maximum compressive stress in steel MPa C Im-

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Alloys

An alloy is an admixture of two or more metals or a metal and a non-metal. Since ancient times, man has been using alloys. Alloying helps to retain the properties of the parent matter, such as hardness, strength, toughness, ductility and is corrosion-resistant. Copper alloys such as brass have antimicrobial properties that help to fight against (Coronavirus disease 2019) COVID-19 and other hospital-acquired infections. Some common alloys are brass, bronze, solder steel, etc. Most alloys have a lower melting point than their constituents. This is due to the presence of a nonmetal as one of the constituents that behaves as an impurity and restricts the raise of melting point.