Derive the virtual work formula 12.25 for bending of plates. Note that 1. Use ANSYS, SHELL281, to…

Derive the virtual work formula 12.25 for bending of
plates. Note that

1. Use ANSYS, SHELL281, to determine the deflection at
the center for a uniformly loaded square plate with clamped edges for a = b =
20, h = 1, _ = 0.3, D = 100, so that E = 10.92. Use 1/4 of the plate and
symmetry conditions. Submit element layout, maximum deflection, maximum and
minimum values of moments and shears, and plot of QY for the clamped edge y =
0. See Section 15.27.