The vessel has inner radius $r=2\mathrm{.}0m$ and wall thickness $t=20$ mm $.$ The material is steel with modulus $E=200$GPa and Poisson's ratio $n=0\mathrm{.}30.$ The internal pressure $p$ is $800$ kPa $.$

Calculate ${}_1$ and ${}_2$

Calculate the maximum shear stress, using Mohr's circle

Calculate ${}_{x1},{}_{y1},$ and ${}_{x1y1},$ using Mohr's circle

Calculate ${}_{x1},{}_{y1},$ and ${}_{x1y1},$ using Hooke's law.