Civil Engineering - Strength of Materials - Discussion

Discussion Forum : Strength of Materials - Section 1 (Q.No. 34)
34.
The deflection of any rectangular beam simply supported, is
directly proportional to its weight
inversely proportional to its width
inversely proportional to the cube of its depth
directly proportional to the cube of its length
none of these.
Answer: Option
Explanation:
No answer description is available. Let's discuss.
Discussion:
45 comments Page 2 of 5.

Shahab Mehsood said:   4 years ago
B and C both are correct as I=bh^3/12.
Hence deflection is inversely proportional to the width and cube of the depth of the beam.
(2)

Abhishek said:   1 decade ago
Right @Mr. Asif.

Deflection is always inversely proportional to the moment of inertia in any case of loading.

PRAVEEN SHARMA said:   9 years ago
In case of loading deflection is wl3/48 EI. So, Deflection is directly proportional to the weight of beam.

Bikash kabiraj said:   8 years ago
W is applied force.
Deflec=wl^3/48ei,
i=moment of inertia,
i=bd^3/12 so option c is correct.

Dhanya S said:   9 years ago
It is also directly proportional to the cube of it's length. So option D can also be correct.

RAKESH said:   7 years ago
Only I=BD*3/12 will remain same in all condition of deflection. So, C option must be right.

Sanjeev ranjan said:   9 years ago
All answers are correct, all of the above is a better option at the place of none of these.

Arsalan gul said:   2 years ago
I think all of them are correct because in the deflation formula wL3/48EI where I= bh3/12.

Pavan said:   8 years ago
According to me, the answer should be all the above read it carefully you will understand.

Susmita said:   1 decade ago
Deflection simply supported beam carrying point load at its mid point=wl^3/48EI.


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