Mechanical Engineering - Strength of Materials - Discussion
Discussion Forum : Strength of Materials - Section 3 (Q.No. 1)
1.
The shear force and bending moment are zero at the free end of a cantilever beam, if it carries a
Discussion:
28 comments Page 1 of 3.
Krishna said:
1 decade ago
The answer is non of the above. UDL in hole length of the beam can be replaced by the point load at the center hence it will produce bending moment one end with refered to fixed end.
Venugopalan CV said:
1 decade ago
The bending moment is zero at the free end of the cantilever in all the cases. Shear force has the value of the load in Case A. Shear force is zero in both B and C. In case C, the shear force varies linearly from zero at the free end to a maximum at the fixed end.
Rakesh said:
1 decade ago
Hello buddies it is an option D.
Because always in cantilever beam free end is zero.
Because always in cantilever beam free end is zero.
Abdul Rajik said:
1 decade ago
Hi Guys,
Lets take cantilever Beam with UDL,
Now let us consider Fixed end is A,
And Free end is B.
SF at B is 0.
BM at B is 0.
So Answer is C.
Lets take cantilever Beam with UDL,
Now let us consider Fixed end is A,
And Free end is B.
SF at B is 0.
BM at B is 0.
So Answer is C.
Nagendra said:
1 decade ago
Guys answer B & C. Because load at the middle portion case also bending moment is zero. It create deflection at free end only not bending moment.
SAARANSH said:
10 years ago
In all the cases SF and BM are zero at free end.
S.Patel said:
9 years ago
For cantilever beam with UDL:
If we consider a section x - x from free end.
Then, shear force will be = Wx.
Put B.C at x = 0 and x = 1.
We get at free end Shear force = 0.
Now for bending moment at x - x section.
Then, B.M will be = W(x)2/2.
Put B.C at x = 0 and x = 1.
We get free end Bending moment = 0.
So, the answer C is correct one.
If we consider a section x - x from free end.
Then, shear force will be = Wx.
Put B.C at x = 0 and x = 1.
We get at free end Shear force = 0.
Now for bending moment at x - x section.
Then, B.M will be = W(x)2/2.
Put B.C at x = 0 and x = 1.
We get free end Bending moment = 0.
So, the answer C is correct one.
Manish said:
9 years ago
Ans should be both (b) and (c).
Bending moment is zero at the free end in all three cases but the shear force is zero at the free end in case of b and c only.
Bending moment is zero at the free end in all three cases but the shear force is zero at the free end in case of b and c only.
Jnk said:
9 years ago
Why not the answer is option A?
Jnk said:
9 years ago
The given answer, option C is correct.
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