Civil Engineering - UPSC Civil Service Exam Questions - Discussion
Discussion Forum : UPSC Civil Service Exam Questions - Section 3 (Q.No. 37)
37.
The deflection at the free end of a cantilever of rectangular cross-section due to certain loading of 0.8 cm. If the depth of the section is doubled keeping the width the same, then the deflection at the free end due to the same loading will be
Discussion:
5 comments Page 1 of 1.
Akash k said:
6 years ago
Deflection WL^3/8EI.
I= Bd3/12.
hence Depth ratio = D^3/(2D)^3 = 0.8^3/(2*0.8)^3 = 0.125.
I= Bd3/12.
hence Depth ratio = D^3/(2D)^3 = 0.8^3/(2*0.8)^3 = 0.125.
Rahul verma said:
3 years ago
DEFLECTION = PL^2/EI.
I= BD^3/12.
I proportional to D^3;
X=BD^3/8EI.
.8/X = 8,
X= 0.1.
I= BD^3/12.
I proportional to D^3;
X=BD^3/8EI.
.8/X = 8,
X= 0.1.
Naveen said:
4 years ago
Deflection reduced 8 times when depth of beam is doubled.
Gagan said:
7 years ago
Can anyone give explanation?
Manu said:
8 years ago
W*L^4/8 is the formula.
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