[ANSWERED] 1. For the rectangular element of Figure 10–20 with the nodal displacements given by determine the..

1. For the rectangular element of Figure 10–20 with the
nodal displacements given by
determine the fsg matrix at s = 0, t = 0 using the
isoparametric formulation described in Section 10.4. (Also see Example 10.5.)
Let E = 30 10
6
psi and n = 0:3.
2.
For the three-noded bar (Figure P10–1), what
Gaussian quadrature rule (how many Gauss points) would you recommend to
evaluate the sti¤ness matrix? Why?