[ANSWERED] A bar assemblage consists of two outer steel bars and an inner brass bar. The threebar assemblage is

A bar assemblage consists of two outer steel bars and an
inner brass bar. The threebar assemblage is then heated to raise the
temperature by an amount T = 40 F. Let all cross-sectional areas be A = 2 in
2
and L = 60 in., Esteel = 30
10
6
psi, Ebrass
= 15
10
6
psi, asteel = 6:5
10‑/
F, and abrass = 10
10
-6
/ F. Determine (a)
the displacement of node 2 and (b) the stress in the steel and brass bars. See
Figure P15–8.