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
Discussion:
41 comments Page 1 of 5.
Mpv ramesh said:
6 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.
(10)
Rahul said:
6 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.
Thank you.
(3)
Mytharprasanth said:
6 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.
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.
(1)
Asha Vasudevan said:
7 years ago
It is because of no compressive stress.
(1)
Prudhvi said:
8 years ago
Stress in any layer depends on its distance from the nutreal axis.
(1)
Aamir said:
8 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.
So at NA y=0 ,therefore BS =0.
(1)
Sharad Shinde said:
9 years ago
Bending stress at neutral axis are zero but shear stress are maximum at neutral axis.
Ravi said:
9 years ago
A middle line of load zero because load separated all side so BM is zero.
Ramya said:
9 years ago
Why shear stress maximum at neutral axis?
Ankit patel said:
9 years ago
Assume that horizontal beam is subjected to bending stress, due to load P (downward).
Bending is occur in downward direction.
From neutral axis upper part in tensile stress and lower part is in compressive stress but at neutral axis it.
Must become zero.
Bending is occur in downward direction.
From neutral axis upper part in tensile stress and lower part is in compressive stress but at neutral axis it.
Must become zero.
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