[ANSWERED] 1. For the bar elements shown in Figure P3–17, the global displacements have been determined to be u

1. For the bar elements shown in Figure P3–17, the global
displacements have been determined to be u
1
= 0:0; v
1
=
2:5 mm, u
2
= 5:0 mm, and v
2
= 3:0 mm. Determine the local
x0 displacements at the ends of each bar. Let E = 210 GPa, A = 10 10
4
m
2
, and L = 3 m for each element.
2. Using the method of Section 3.5, determine the axial
stress in each of the bar elements shown in Figure P3–18.