Civil Engineering - Steel Structure Design - Discussion

7. 

The critical stress on a column for elastic buckling given by Euler's formula, is

[A].
[B].
[C].
[D].

Answer: Option A

Explanation:

No answer description available for this question.

Suresh said: (Jun 3, 2016)  
Give the expansion of each letter.

Kutu said: (Jun 3, 2016)  
Critical stress = Criticl load/Area.

Critical Load as per Euler formula = (pie sq x EI)/L2.

So C.Strees = Pie Sq X E/ (L/r) Sq.

Chhaya said: (Apr 28, 2017)  
Here R= √i/A.
Radius of gyration.

Hareesh said: (Nov 28, 2017)  
Radius of gyration r =π(I/A).
I= A*r^2.
Critical load P=(π^2*EI)/l^2.
Both sides division with "A".
P/A = (π^2*EAr^2)/(A*l^2).
P/A = critical stress.
Critical stress= (π^2*E)/(l/r)^2.

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