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Strength of Materials - Engineering

Q1:

A thick cylindrical shell having ro and ri as outer and inner radii, is subjected to an internal pressure (p). The maximum tangential stress at the inner surface of the shell is

A

B

C

D

ANS:A -

Yes, stress = pressure/Area.

Area of cylindrical shell = (ri^2 - ro^2)/(ri^2+ro^2).
Hence, stress= p(ri^2+ro^2)/(ri^2-ro^2).