2. A square steel hollow channel is 18mm x 18mm and has a wall thickness of 2mm. If this size channel was used and cut to a length of L = 1.25m and was used as a column with fixed-pinned ends, determine (let E = 210 GPa): (a) the critical stress in the column with respect to buckling, and (b) if the cross section is changed to a hollow circular cross section, where the outer diameter is inscribed inside the original square cross section, will its critical stress be higher or lower than part (a)? Why? Assume the same material thickness. (Note: to receive full credit you must briefly explain your answer – you cannot just use numbers as proof)

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
icon
Related questions
Question

Please full answer. Don't copy from other online answers, please.

2. A square steel hollow channel is 18mm x 18mm and has a wall thickness of 2mm. If this size channel
was used and cut to a length of L = 1.25m and was used as a column with fixed-pinned ends, determine
(let E = 210 GPa):
(a) the critical stress in the column with respect to buckling, and
(b) if the cross section is changed to a hollow circular cross section, where the outer diameter is
inscribed inside the original square cross section, will its critical stress be higher or lower than
part (a)? Why? Assume the same material thickness. (Note: to receive full credit you must
briefly explain your answer – you cannot just use numbers as proof)
Transcribed Image Text:2. A square steel hollow channel is 18mm x 18mm and has a wall thickness of 2mm. If this size channel was used and cut to a length of L = 1.25m and was used as a column with fixed-pinned ends, determine (let E = 210 GPa): (a) the critical stress in the column with respect to buckling, and (b) if the cross section is changed to a hollow circular cross section, where the outer diameter is inscribed inside the original square cross section, will its critical stress be higher or lower than part (a)? Why? Assume the same material thickness. (Note: to receive full credit you must briefly explain your answer – you cannot just use numbers as proof)
Expert Solution
trending now

Trending now

This is a popular solution!

steps

Step by step

Solved in 3 steps

Blurred answer
Knowledge Booster
Mechanical Drawings
Learn more about
Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, mechanical-engineering and related others by exploring similar questions and additional content below.
Similar questions
Recommended textbooks for you
Elements Of Electromagnetics
Elements Of Electromagnetics
Mechanical Engineering
ISBN:
9780190698614
Author:
Sadiku, Matthew N. O.
Publisher:
Oxford University Press
Mechanics of Materials (10th Edition)
Mechanics of Materials (10th Edition)
Mechanical Engineering
ISBN:
9780134319650
Author:
Russell C. Hibbeler
Publisher:
PEARSON
Thermodynamics: An Engineering Approach
Thermodynamics: An Engineering Approach
Mechanical Engineering
ISBN:
9781259822674
Author:
Yunus A. Cengel Dr., Michael A. Boles
Publisher:
McGraw-Hill Education
Control Systems Engineering
Control Systems Engineering
Mechanical Engineering
ISBN:
9781118170519
Author:
Norman S. Nise
Publisher:
WILEY
Mechanics of Materials (MindTap Course List)
Mechanics of Materials (MindTap Course List)
Mechanical Engineering
ISBN:
9781337093347
Author:
Barry J. Goodno, James M. Gere
Publisher:
Cengage Learning
Engineering Mechanics: Statics
Engineering Mechanics: Statics
Mechanical Engineering
ISBN:
9781118807330
Author:
James L. Meriam, L. G. Kraige, J. N. Bolton
Publisher:
WILEY