Civil Engineering - Strength of Materials - Discussion
Discussion Forum : Strength of Materials - Section 1 (Q.No. 15)
15.
If the shear force along a section of a beam is zero, the bending moment at the section is
Discussion:
25 comments Page 3 of 3.
Mahesh said:
9 years ago
Shear force is Zero then maximum B.M is applied.
Jay said:
1 decade ago
Since dM/dx = V.
So when V (shear force) = 0, => dM/dx = 0 means M can be maximum or minimum.
How is the answer maximum ?
So when V (shear force) = 0, => dM/dx = 0 means M can be maximum or minimum.
How is the answer maximum ?
Yogesh said:
1 decade ago
When no load applied on beam.
Nikhil said:
1 decade ago
Where the shear force becomes zero. The B.M becomes maximum.
Proof:
The b.m for simply supported beam subjected to point load at middle.
The shear force at A.is W/2.
We know that the shear force becomes zero at L/2 of the span.
The B.M is maximum at L/2 the shear force becomes zero.
Therefore,
(W/2)*(L/2)=WL/4.
Proof:
The b.m for simply supported beam subjected to point load at middle.
The shear force at A.is W/2.
We know that the shear force becomes zero at L/2 of the span.
The B.M is maximum at L/2 the shear force becomes zero.
Therefore,
(W/2)*(L/2)=WL/4.
Talari hari said:
1 decade ago
When shear force zero at the time only we have maximum bending moment.
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