Answered: P A L b Section A-A

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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Question

An aluminum box column with a square
cross section is fixed at the base and free at the top
(see figure). The outside dimension b of each side is
100 mm and the thickness t of the wall is 8 mm. The
resultant of the compressive loads acting on the top
of the column is a force P = 50 kN acting at the outer
edge of the column at the midpoint of one side.
What is the longest permissible length Lmax of the
column if the deflection at the top is not to exceed
30 mm? (Assume E =73 GPa.)

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