For the bilinear quadrilateral element specified in the figure below:
y
4
3
(0, 1)
(2, 1)
1
(0,0)
2
(2,0)
x
Compute the element shear stiffness matrix ($k_s$) for the Reissner-Mindlin plate theory
using selective reduce integration (that is, 1x1 Gauss quadrature rule). The thickness of
the plate is $t = 0.01$ and the shear modulus of the pate is $\mu = 100.$
