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 2 of 5.
Vijay simha said:
1 decade ago
Because there is neither compression nor tension at centre.
Ram gupta said:
1 decade ago
Because the neutral axis pass through the CG of symmetrical section.
Rajneesh agrahri said:
1 decade ago
There is no effect which load acting at beam cross section.
Mukh ram meena said:
1 decade ago
At the neutral axis load zero, so BM will be zero.
Navin chandra said:
1 decade ago
Definition of the neutral axis itself says that "It is the axis on the plane of cross section, where strain, and hence stress is zero at the time of bending."
Shetty said:
1 decade ago
The force acting on beam it tends to bend the body but there no affect on the neutral axis so its zero.
Nagenendra singh said:
10 years ago
Because bending stress is proportional to distance between neutral point and outer fiber of beam. At neutral point its distance became zero so stress will be zero.
Ashish said:
10 years ago
Line or plane through a beam at which there is no extension or compression occurs when the beam bends.
KUNDAN said:
10 years ago
Applied load is crosses or on perpendicular to the neutral axis of beam. So BM is zero also the shear force is also zero.
Gebremedhin said:
9 years ago
Due to Hooke's Law, the stress in the beam is proportional to the strain by E, the modulus of Elasticity.
Therefore, from statics a moment (i.e. pure bending) consists of equal and opposite forces. So, the total amount of force across the cross section must be 0.
Therefore, from statics a moment (i.e. pure bending) consists of equal and opposite forces. So, the total amount of force across the cross section must be 0.
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