Civil Engineering - Strength of Materials - Discussion
Discussion Forum : Strength of Materials - Section 5 (Q.No. 9)
9.
If all the dimensions of a bar are increased in the proportion n : 1, the proportion with which the maximum stress produced in the prismatic bar by its own weight, will increase in the ratio
1 : n
n : 1
1 : 
: 11 : n.
Discussion:
13 comments Page 2 of 2.
Rot said:
5 years ago
Thanks @Suraj.
Dheeraj said:
4 years ago
Stress under own weight = wl^2/2E.
Where w is unit weight,
So, it might be 4 times.
Where w is unit weight,
So, it might be 4 times.
CK kumar said:
3 years ago
Stress due to self weight= Density * length of bar.
So stress is directly proportional to length only.
So, now if you increase the length by n and compare it with old stress then you will get the answer.
So stress is directly proportional to length only.
So, now if you increase the length by n and compare it with old stress then you will get the answer.
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