A B D (a) If the gap, w, must be at least 0.015 in for the proper functioning of the assembly, what is the correct nominal dimension for d? (b) Under the assumptions of the preceding question, what would be the most likely value for the gap, w? Would it be 0.015 in?

Part 1 At a temperature of 60°F, a 0.05-in. gap exists between the ends of the two bars shown. Bar (1) is an aluminum alloy [E = 10,000 ksi; v = 0.32; a = 12.5 x 106/°F] bar with a width of 2.7 in. and a thickness of 0.65 in. Bar (2) is a stainless steel [E = 28,000 ksi; v = 0.12; a = 9.6 x 106/°F] bar with a width of 1.6 in. and a thickness of 0.65 in. The supports at A and C are rigid. Assume h₁=2.7 in., h₂=1.6 in., L₁=26 in., L2=40 in., and 4 = 0.05 in. Determine (a) the lowest temperature at which the two bars contact each other. (b) the normal stress in the two bars at a temperature of 225°F. (c) the normal strain in the two bars at 225°F. (d) the change in width of the aluminum bar at a temperature of 225°F. (1) L₁ h₁ Answer: Tcontact= B Save for Later A eTextbook and Media h₂ Determine the lowest temperature, Tcontact: at which the two bars contact each other. (2) L2 °F Attempts: 0 of 5 used Submit Answer

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A cylinder of 3 in. bore diameter and 1.5 in. rod diameter must balance in tension a force of 450 lbs. What should the gauge pressure be? [Answer:84.9 psig]