[ANSWERED] 1. For the grid shown in Figure P5–48, determine the nodal displacements and the local element…

1. For the grid shown in Figure P5–48, determine the nodal
displacements and the local element forces. Let E = 30
10
6
psi, G = 12
10
6
psi, I = 200 in.
4
,
and J = 100 in.
4
for both elements.
2.
For the grids shown in Figures P5–50 and P5–51,
determine the nodal displacements and the local element forces. Let E = 210
GPa, G = 84 GPa, I =2
10
-4
m
4
,
J = 1
10
-4
m
4
, and A
= 1
10
2
m
2
.