=+Problem 5.11 Let us consider a circular Kirchhoff plate undergoing axisymmetric vibration

(k = 0). Determining its vibration modes becomes a two-dimensional problem which can be addressed by constructing an axisymmetric finite element model kinematically similar to the beam element, using thus shape functions similar to (5.117) to interpolate the plate deflection in the radial direction. The strain and kinetic energies are computed from (4.432) and (4.367).

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