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 2 of 3.
Jishan said:
7 years ago
The answer will be 1/2.
Raj said:
7 years ago
It is 8 times only. 1/ 2 for cantilever.
Kishan said:
7 years ago
I think 1/2 is correct.
Ram said:
7 years ago
I don't understand how it is 1/2?
Clearly said in the question that the load is doubled.
So the formula for deflection is Wl^3/48EI. So that W=2W so it is doubled.
@Yuvrahsinh
Here it didn't ask for the ratio of deflection.
I think option A is correct.
Clearly said in the question that the load is doubled.
So the formula for deflection is Wl^3/48EI. So that W=2W so it is doubled.
@Yuvrahsinh
Here it didn't ask for the ratio of deflection.
I think option A is correct.
Saugat Oli said:
7 years ago
@Ram.
The load is not doubled width is being doubled. So the answer will be 1/2.
The load is not doubled width is being doubled. So the answer will be 1/2.
Kk bhal said:
6 years ago
Yes, you are right, thanks @Raj.
Vasu said:
6 years ago
1/2 is the correct answer.
Namita said:
6 years ago
1/2times is correct answer.
Naveen said:
5 years ago
Deflection =wl3/48EI,
I=bd3/12.
Width is (b) is doubled = 2b.
Then I=2bd3/12, I= bd3/6.
Deflection = wl3/48Ebd3/6.
= wl3/8Ebd3.
I agree with the given answer.
I=bd3/12.
Width is (b) is doubled = 2b.
Then I=2bd3/12, I= bd3/6.
Deflection = wl3/48Ebd3/6.
= wl3/8Ebd3.
I agree with the given answer.
(2)
Dipunku said:
5 years ago
1/2 will be the answer.
(1)
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