Answer:the maximum normal stress=62.1 Ksi
maximum Shear stress, τmax=31.05ksi
Explanation:
Given pressure of inner vessel=60psi
t=thickness of the wall of the vessel=0.375 in
r = inner radius= d₀/2 -t
d₀=13-ft to inches = 13 x12 =156 in/2
=78 - 0.375
=77.625 in
The maximum normal stress in a spherical container is calculated as
σ=pr/2t
= 60 x 77.625/ 2 x0.375
6210psi / 100 = 62.1 Ksi
maximum Shear stress, τmax = σmax /2
62.1 Ksi/2
=31.05ksi
