[ANSWERED] 1. Express the explicit shape functions N2 through N8, similar to N1 given by Eq. (11.3.4), for the.

1. Express the explicit shape functions N2 through N8,
similar to N1 given by Eq. (11.3.4), for the linear hexahedral element shown in
Figure 11–5 on page 546.
2. Determine the deflections at the four corners of the free
end of the structural steel cantilever beam shown in Figure P11–13. Also
determine the maximum principal stress. Compare your answer for deflections to
the classical beam theory equation (d = PL
3
/(3EI).