Engineering Fundamentals: An Introduction to Engineering
Engineering Fundamentals: An Introduction to Engineering
6th Edition
ISBN: 9780357112311
Author: Saeed Moaveni
Publisher: Cengage Learning US
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Chapter 7, Problem 47P
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Find the factor at which the resistance increases if W18×76 beam is used over W8×31 about xx axis.

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By what factor do you increase the resistance to bending (about x-x axis) if you were to use W18x76 beam over W8x31?
Determine the Plastic Section Modulus (Zx) and Elastic Section Modulus (Sx). Express your answer in mm3 50 25 150X50X25X2MM 25
6. A steel wire 2m long and 3 mm in diameter is extended by 0.75 mm when a weight P is suspended from the wire. If the same weight is suspended from a brass wire, 2.5 long and 2 mm in diameter, it is elongated by 4.64 mm. Determine the modulus of elasticity of brass if that of steel be 2.0 x 10^2 N/mm^2. a. 0.976 x 10^5 N/mm^2 b. 0.183 x 10^5 N/mm^2 d. 0.909 x 10^5 N/mm^2 c. 0.293 x 10^5 N/mm^2
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