18. A steel loop ABCD of length 1.2 m and of 10-mm diameter is placed asshown around a 24 mm diameter aluminum rod AC. Cables BE and DF,each of 12 mm diameter, are used to apply the load P. Knowing that theultimate strength of the steel used for the loop and the cables is 400MPa and that the ultimate strength of the aluminum used for the rod is220 MPa, determine the largest load P that can be applied if an overallfactor of safety of 3 is desired.a.37.7 KNb. 39.7 KNEС.74.6 KNd. 45.2 KNB180 mm480 mmA180 mmD

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largest load P that can be applied i cirod

Steel Design (Activate Learning with these NEW titles from Engineering!)

6th Edition

ISBN:9781337094740

Author:Segui, William T.

Publisher:Segui, William T.

Chapter9: Composite Construction

Section: Chapter Questions

Problem 9.1.3P

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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.

Question

18. A steel loop ABCD of length 1.2 m and of 10-mm diameter is placed as
shown around a 24 mm diameter aluminum rod AC. Cables BE and DF,
each of 12 mm diameter, are used to apply the load P. Knowing that the
ultimate strength of the steel used for the loop and the cables is 400
MPa and that the ultimate strength of the aluminum used for the rod is
220 MPa, determine the largest load P that can be applied if an overall
factor of safety of 3 is desired.
a.
37.7 KN
b. 39.7 KN
E
С.
74.6 KN
d. 45.2 KN
B
180 mm
480 mm
A
180 mm
D

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