Mechanical Engineering - Strength of Materials - Discussion
Discussion Forum : Strength of Materials - Section 1 (Q.No. 11)
11.
For a beam, as shown in the below figure, the maximum deflection is 
.
. Discussion:
67 comments Page 1 of 7.
Aditya Dwivedi said:
4 years ago
The equation given in the question expresses the value of Deflection at the point of application of load. But maximum deflection will be somewhere between the point of application and midpoint of the beam. So this equation DOESN'T represent MAXIMUM deflection and the statement will be FALSE.
(3)
Anant Kumar said:
9 years ago
Here in question given (Wa2b2/3EIL). So read the question carefully.
If you put a = b = (L/2). Then it satisfies the equation as we know that for simply supported beam max deflection is,
(WL^3/48EI).
So given answer is wrong.
Option A is the correct answer.
If you put a = b = (L/2). Then it satisfies the equation as we know that for simply supported beam max deflection is,
(WL^3/48EI).
So given answer is wrong.
Option A is the correct answer.
Ram said:
7 years ago
It is correct. The correct answer is B.
It's given value in question is deflection at point C NOT Maximum deflection,
And max deflection is to find;
If b > a
So √(l *a)/3 distance from point b.
It's given value in question is deflection at point C NOT Maximum deflection,
And max deflection is to find;
If b > a
So √(l *a)/3 distance from point b.
PRADEEP said:
9 years ago
Here it is a simply supported beam with eccentric loading (wa2b2/3eil). Which is absolutely correct. Hence by substitution a = L/2, we can get the maximum deflection at mid point.
Chirag sakariya said:
1 decade ago
If we take a and b equal to L/2 then this equation doesn't satisfy the equation of central loaded beam = Wl3/48EI.
So this is wrong Question Or the Answer given here is Wrong.
So this is wrong Question Or the Answer given here is Wrong.
Tushar Jha said:
1 decade ago
Answer should be A. Since the deflection at any point on a SSB is given by the same formula. It can be verified for maximum deflection at center for a SSB.
Ashutosh said:
9 years ago
It's a simply supported beam but the load is not symmetric so, it will produce max deflection at the point where external load is applied.
Dibas said:
7 years ago
@All.
Here the question is asking for maximum deflection not for the deflection at position C. So the answer here given is correct.
Here the question is asking for maximum deflection not for the deflection at position C. So the answer here given is correct.
Abhishek Shukla said:
8 years ago
Deflection at C will be maximum and its value is given correct in the question itself hence option A i.e., True is correct.
Sanchez said:
1 decade ago
By McCauley's method.
Max deflection = wba3/3EI as max deflection occur under loading i.e. - x=a from left support.
Max deflection = wba3/3EI as max deflection occur under loading i.e. - x=a from left support.
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