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