A bar assemblage consists of two outer steel bars and an inner brass bar. The threebar a...

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 ?. Let all cross-sectional areas be Determine (a) the displacement of node 2 and (b) the stress in the steel and brass bars. See Figure P15–8.