Answered: A, -daB |P2 - fBC PROBLEM 1.4-1

Elements Of Electromagnetics

7th Edition

ISBN:9780190698614

Author:Sadiku, Matthew N. O.

Publisher:Sadiku, Matthew N. O.

ChapterMA: Math Assessment

Section: Chapter Questions

Problem 1.1MA

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A hollow circular post ABC (see figure) supports a load P_t= 1700 lb acting a1 the top. A second load P₂is uniformly distributed around the cap plate at B. The diameters and thicknesses of the upper and lower parts of the post are AB = 1.25 in.,t AB = 0.5 in., d_B_c= 2.25 in_ and t_BC= 0.575 in., respectively.

(a) Calculate the normal stress a_ABin the upper part of the post.

(b) Ifyou want the lower part of the post to have the same compressive stress as the upper part, what should be the required magnitude ofload P₂?

(c) If P₁remains at 1700 lb and P₂is set at 2260 lb, what new thickness of BC will result in the same compressive stress in both parts?

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