For the plane stress problem shown in Figure 4.19, (a) Determine the 10 × 10 global stiffness…

For the plane stress problem shown in Figure 4.19,

(a) Determine the 10 × 10 global stiffness matrix.

(b) Eliminate node 3 by static condensation to obtain an
8 × 8 stiffness matrix for the rectangle.

(c) Solve for the displacements at nodes 4 and 5, when
both components of displacement at nodes

1 and 2 are zero, and there is a uniformly distributed
horizontal load p on side 4–5.