ME 4244 Chapter : Chapter 2 Solutions
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Mpa (kpsi) ans. (d) 2024-t4: sut = 446 (64. 8) mpa (kpsi), syt = 296 (43. 0) mpa (kpsi) ans. (e) ti-6al-4v annealed: sut = 900 (130) mpa (kpsi), syt = 830 (120) mpa (kpsi) ans. 2-1 from tables a-20, a-21, a-22, and a-24c, 2-3 conversion of kn/m3 to kg/ m3 multiply by 1(103) / 9. 81 = 102 (a) maximize yield strength: q&t at 425 c (800 f) ans. (b)maximize elongation: q&t at 650 c (1200 f) ans. Aisi 1018 cd steel: tables a-20 and a-5 ys. 40 cast iron: tables a-24a and a-5. does not have a yield strength. For data in elastic range, = l / l0 = l / 2 (a) a0 = (0. 503)2/4, = pi / a0. On the next two pages, the data and plots are presented. Figure (a) shows the linear part of the curve from data points 1-7.
