# Mechanical Engineering - Strength of Materials - Discussion

Discussion Forum : Strength of Materials - Section 1 (Q.No. 3)
3.
The neutral axis of the cross-section a beam is that axis at which the bending stress is
zero
minimum
maximum
infinity
Explanation:
No answer description is available. Let's discuss.
Discussion:
40 comments Page 1 of 4.

Mpv ramesh said:   3 years ago
The neutral axis is an imaginary line even the beam bending concave shape the neutral axis is all ways a straight line so the bending stress is zero at the neutral axis.

Rahul said:   3 years ago
The answer is zero because it is designed in such a way that it can withstand maximum load up to this neutral axis face zero force.

Thank you.

Mytharprasanth said:   4 years ago
Initially, no load will be acting in a Cross-section of the beam.

So, bending moment on the axis of the beam.

And, it will be zero.

the intial load is zero, and there is no force act itself.

Asha Vasudevan said:   4 years ago
It is because of no compressive stress.

Amal George said:   5 years ago
In the neutral axis, there is no force.

Sagar Bankar said:   5 years ago
Because at the neutral axis No strain and No stress.

Prudhvi said:   5 years ago
Stress in any layer depends on its distance from the nutreal axis.

Sumanta dey said:   5 years ago
Because of shear stress maximum in N.A. So bending stress is min in N. A. And maxi in extreme fibre.

Aamir said:   5 years ago
As bending stress =MY/I, where y is the distance of extreme fibre from NA.

So at NA y=0 ,therefore BS =0.

Naveen saniu said:   5 years ago
No load is acting that's why zero.