Mechanical Engineering - Strength of Materials - Discussion

Discussion Forum : Strength of Materials - Section 8 (Q.No. 32)
32.
A simply supported beam 'A' of length l, breadth b, and depth d carries a central point load W. Another beam 'B' has the same length and depth but its breadth is doubled. The deflection of beam 'B' will be __________ as compared to beam 'A'.
one-fourth
one-half
double
four times
Answer: Option
Explanation:
No answer description is available. Let's discuss.
Discussion:
13 comments Page 2 of 2.

Debesh said:   8 years ago
It is double.

Bipul Ranjan said:   8 years ago
Deflection for SSB at central point load=wl^3/48Ei and deflection is inversely proportional to I(bd^3/12).

Hence deflection is also inversely proportional to breadth.
Db/Da = Ba/Bb.
= 1/2.

Vikram said:   8 years ago
Can anybody explain this?


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