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Four identical hollow cylindrical cloumn...

Four identical hollow cylindrical cloumns of steel support a big structure of mass 50.000 kg. the inner and outer radii of each column are 30 cm and 60 cm respectively. Assume the load distribution to be uniform , calculate the compressional strain of each column. the Young's modulus of steel is `2.0 xx 10^(11) Pa`.

A

`2.78xx10^(-6)`

B

`3.78xx10^(-6)`

C

`2.78xx10^(-4)`

D

`3.78xx10^(-4)`

Text Solution

Verified by Experts

The correct Answer is:
A
The resisting area is each column `* (R^(2) - r^(2))`
Compressional strain `= (F)/(AY)`
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