New Problem 5.2: The principle of minimum total potential energy for axisymmetric bending...

New Problem 5.2: The principle of minimum total potential energy for axisymmetric bending of polar orthotropic plates according to the first-order shear deformation theory requires where

where b is the inner radius and a the outer radius of the radial element. Derive the displacement finite element model of the equations. In particular, show that the finite element model is of the form (i.e., define the matrix coefficients of the following equation)