Mechanical Engineering - Strength of Materials - Discussion

Moment of inertia is tendency of a body to resist angular acceleration. Buckling means A body leading towards a failure mode. Maximum moment of inertia resits this buckling because it is its tendency. So minimum moment of inertia only leads to buckling.

Buckling and bending are similar in that they both involve bending moments. In bending these moments are substantially independent of the resulting deflections, whereas in buckling the moments and deflections are mutually inter-dependent. So moments, deflections and stresses are not proportional to loads.

Buckling is sudden sideways failure of a structure subjected to high compressive stress.

It occurs due to bifurcation (small change in parameter causes sudden change in behavior).

Option C should be the answer C because buckling load is proportional to moment of inertia.

What is meant by buckling? First describe this.

Moment of inertia refers to the resistance offered to the rotation along the axis. Consider the whole body rotating and there is aportion which has minimum moment of inertia. So it cannot resist the rotational motion and hence starts to buckle.

What is buckle? Explain this.

What is practical meaning of moment of inertia?

How buckling is related to the moment of inertia?

Can anyone say clearly what is buckling?

Due to its size, its axial displacement is going to be very small compared to its lateral.

Deflection called buckling.