Prob. 2.13-5. A titanium-alloy bar has the following original

dimensions: a = 10 in., b = 4 in., and c = 2 in. The bar is sub-

jected to stresses ₂ = 14 ksi anda, = -6 ksi, as indicated

in Fig. P2.13-5. The remaining stresses-2 Ty Tz, and Tyz-

are all zero. Let E = 16 x 10³ ksi and p = 0.33 for the

titanium alloy. (a) Determine the changes in the lengths: Aa,

Ab, and Ac, where a = a + Aa, etc. (b) Determine the

dilatation, ev.

C6 ksi

P2.13-5

14 ksl