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Mechanical Engineering - Strength of Materials - Discussion

Discussion Forum : Strength of Materials - Section 3 (Q.No. 46)
Strength of Materials
46.
The shear force diagram fora cantilever beam of length l and carrying a gradually varying load from zero at free end and w per unit length at the fixed end is a
horizontal straight line
vertical straight line
inclined line
parabolic curve
Answer: Option
Explanation:
No answer description is available. Let's discuss.
Discussion:
12 comments Page 1 of 2.
VS fan said:   6 years ago
Because it sf is the area of the triangle(varying load), @fixed end load = w, using similarity of triangle load at any section x-x from a distance x from free end we get wx/l so total load @between section xx and free end = area of triangle(gradually varying load) = 1/2wxx/l = wx^2/l(parabolic curve).
Ppradeep gk said:   8 years ago
SFD
The verticlr line for Point load.
The inclined line for UDL.
parbolic curve for UVL.

BMD
The inclined line for a Point load.
The parabolic curve for UDL.
The cubic curve for UVL.
SANJAY said:   8 years ago
Sfd is always an inclined line and BMD is always parabolic. Its verified true.

When both ends free than SFD and BMD are both parabolic.
Ashfaq said:   8 years ago
The shear force diagram for GVL for cantilever beam is inclined straight line.

Refer R.S.KHURMI
(1)
Manu said:   8 years ago
For cantilever and gradually varying always having a curve shape in shear force diagram.
Jaanu said:   6 years ago
@Ashfaq

It is slightly parabolic which we are not identified.
Prosenjit Das said:   1 decade ago
It will be vertical straight line, how it is parabolic curve?
Neeraj said:   9 years ago
Answer is right In case Gvl load it parabolic.
Jnk said:   9 years ago
It may be the inclined staright line.
Vicky said:   9 years ago
Yes, It should inclined line.
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