2. (25 Points) Section A is a steel (E = 200 GPa, V = 0.32) tube with an outside
diameter of 60 mm and inside diameter of 50 mm. Section B is a solid aluminum
(E = 70 GPa, v = 0.35) bar with a 50 mm diameter over the first half of its length
and 25 mm the second half. Determine the following:
[a] Normal stress in section A = 196 mpa
[b] Normal stress in section B (middle section) = 134.78514Pa
(c) Normal strain in section B (middle section)
[d] Change in length of section A = 3.126x10^-4 m
(e) Change in diameter of section B (middle section)
EF=-65-65+220 +45-Fx =
Fx = 135.044 KN
65 kN
CU
cat 2
220 kN
4
A
B
45 kN
CL
65 kN
5
400 mm 500 mm 500 mm