Consider a thin annular disc with inner radius ri and outer radius ro, as shown in the figure. The outer boundary of the disc is clamped and a uniformly distributed load of intensity qo is applied over the annulus. (a) The deflection of the midplane is given by p4 7 D p 64+C14 (logr - 1) + C + c3 logr + C4, - 4 w(r) 90 as we showed in class.* Write down the complete set of equations required to solve for the constants of integration ci, C2, C3, and c4. (Just write out the equations - no need to solve them, as this is laborious.) (20 points) (b) Write down expressions for the maximum displacement, =I z 90 To 90 Clamped boundary