An aluminium hollow box column of square cross section is fixed at the base and free at the top. The width of each side is b=150 mm and the thickness t=10 mm. A compressive load P = 160 KN acts on the outer edge of the column at the midpoint of the side as denoted by P. What is the longest permissible length L of the column if the stress is not to exceed 100 MPa? (E = 70 GPa) Section 4-A

An aluminium hollow box column of square cross section is fixed at the base and free at the top. The width of each side is b=150 mm and the thickness t=10 mm. A compressive load P = 160 KN acts on the outer edge of the column at the midpoint of the side as denoted by P. What is the longest permissible length L of the column if the stress is not to exceed 100 MPa? (E = 70 GPa) Section 4-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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Concept explainers

Buckling of columns

The column is described as a vertical member of the structure that carries an axial compressive load, and buckling is a lateral deformation of the column under the application of load.

Question

An aluminium hollow box column of square cross section is fixed at the base and free at
the top. The width of each side is b=150 mm and the thickness t=10 mm. A compressive load P = 160 kN
acts on the outer edge of the column at the midpoint of the side as denoted by P. What is the longest
permissible length L of the column if the stress is not to exceed 100 MPa? (E = 70 GPa)
b
Section 4-A

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