Civil Engineering - Strength of Materials - Discussion
Discussion Forum : Strength of Materials - Section 4 (Q.No. 28)
28.
If the width of a simply supported beam carrying an isolated load at its centre is doubled, the deflection of the beam at the centre is changed by
Discussion:
28 comments Page 1 of 3.
JOHN MACLAIN said:
10 years ago
It will be 1/2 times,
Deflection = pl3/48EI.
I = bd3/12.
Deflection = k*1/b (where k = pl3/48E).
If b is doubled the deflection will be halved.
Deflection = pl3/48EI.
I = bd3/12.
Deflection = k*1/b (where k = pl3/48E).
If b is doubled the deflection will be halved.
Utsav said:
9 years ago
Yes, it will be halved.
Ankit Pandey said:
9 years ago
It should be 1/2.
Yogesh said:
9 years ago
Yes, it should be 1/2.
-> δ * 1/b
Hence if b id doubled, δ is halved.
-> δ * 1/b
Hence if b id doubled, δ is halved.
Shailendra said:
9 years ago
The correct answer should be option C.
Amiy said:
9 years ago
The given question is for length then. This is correct but for width, it is 1/2.
Dilawar khan said:
8 years ago
The correct answer should be D.
Abhinav said:
8 years ago
How? Explain @Dilawar.
Yuvarjsingh said:
8 years ago
I think Wl^3/48EI / 2Wl^3/48EI = 1/2.
Ibrar Uddin said:
8 years ago
The question is wrong it should be length Instead of width.
Or if the above question is not wrong then answer will be 1/2.
Or if the above question is not wrong then answer will be 1/2.
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