The radial deflection of a pressurized circular cylinder is given

ur$=(2-$v$)($pr$^2)/2$Et

This is based on a plane stress assumption where t is small. What is the deflection

corresponding to a plane strain assumption for t being large? $($Answer of this question is u$=(1+$v$)(23$v$)($pr $^2)/2$Et $)$ please detailed solution