Mechanical Engineering - Strength of Materials - Discussion

Discussion Forum : Strength of Materials - Section 1 (Q.No. 2)
2.
A vertical column has two moments of inertia (i.e. Ixx and Iyy ). The column will tend to buckle in the direction of the
axis of load
perpendicular to the axis of load
maximum moment of inertia
minimum moment of inertia
Answer: Option
Explanation:
No answer description is available. Let's discuss.
Discussion:
43 comments Page 1 of 5.

Shibu said:   1 decade ago
How to find the answer?

Nilesh said:   1 decade ago
Bending stress is inversely proportional to moment of inertia.

Lalit said:   1 decade ago
Cripling or buckling load is directly proportional 2 moment of iertia of a body. So if moment of inertia decreases buckling load also decreases. And at less load column will buckle.

M.zee said:   1 decade ago
What is a buckle?

K.aravind said:   1 decade ago
The equation relating the buckling load and the moment of inertia is.

P=pi^2*EI/l.

So when I decreases the the load required for buckling also decreases thus gets deformed at a very low load.

Here l is the effective load.

PRASAD GANDOLE said:   1 decade ago
Area Moment of Inertia or we can say second moment of area is defined as the resistance to bending. So more the area moment of inertia, less will be the bending. Hence in the direction of bending the beam has minimum area moment of inertia.

Ravinder saini said:   1 decade ago
Minimum moment of inertia because bending moment is inversely proportional to moment of inertia.

PARIKSHIT said:   1 decade ago
Bending stress = (moment*least lateral dimension)/moment of inertia.

F = M*B/I.

If bending stress(F) increases when M.I. Increases therefore it will buckle along minimum M.I.

Anand g g said:   1 decade ago
Moment of inertia is inversely proportional to bending so column will buckle in the direction of the axis which has least moment of inertia.

Ashish said:   1 decade ago
Buckling takes place about minimum radius of gyration or least moment of inertia.


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