Prob. 3.7-2. Elements (1) and (2) were supposed to fit ex- actly between the rigid walls at A and C in Fig. P3.7-1. Howe

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Prob 3 7 2 Elements 1 And 2 Were Supposed To Fit Ex Actly Between The Rigid Walls At A And C In Fig P3 7 1 Howe 1 (56.34 KiB) Viewed 56 times

Prob. 3.7-2. Elements (1) and (2) were supposed to fit ex- actly between the rigid walls at A and C in Fig. P3.7-1. However, element (1) was manufactured a small amount. <L, too long. However, an ingenious technician was able to compress element (1) and insert it in the space between A and B (indicated by dashed lines). (a) Determine expres- sions for the stress o, induced in element (1) and the stress o induced in element (2), and (b) determine the amount U by which element (2) is shortened when element (1) is forced into the dashed-line position. Assume &L in calculating the flexibility coefficient f₁. Solve Parts (a) and (b) of Prob. 3.7-1 for the following rod systems: System S1: E₁ = E. E, = 2E, and System S2: E = 2E, E = E. Discuss the difference in the stresses induced in the rods in these two cases. A₁ A₁ A₂ = 1.5A (1) L+8 B up P3.7-1, P3.7-2 (2)