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The fixed-end bar ABCD consists of three prismatic segments as shown in the figure The end segments have cross-sectional area

The fixed-end bar ABCD consists of three prismatic segments, as shown in the figure. The end segments have cross-sectional area A1 = 1.2 sq.in and length L1 = 8 in. The middle segment has cross-sectional area A2 = 1.8 sq.in and length L2 = 10 in. Loads PB and PC are equal to 5100 lb and 3400 lb, respectively. a) Determine the reactions RA and RD. b) Determine the compressive axial force in the middle segment of the bar c) If the length and cross sectional area of each of the three segments are doubled in value, what is the change in the reactions RA and RD? What is the change in the force F?

May 16 2020 View more View Less

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