Three rods of different materials are connected and placed between rigid supports at A and D, as shown. Properties for each of the three rods are given in the accompanying table. The bars are initially unstressed when the structure is assembled at 20°C. After the temperature has been increased to 120°C, determine (a) the normal stresses in the three rods. (b) the force exerted on the rigid supports. (c) the deflections of joints B and Crelative to rigid support A. Aluminum (1) Cast Iron (2) Bronze (3) L1 = 470 mm L2 = 170 mm L3 = 270 mm A1 = 1300 mm2 A2 = 2800 mm² A3 = 700 mm2 E1 = 70 GPa E2 = 155 GPa E3 = 100 GPa a1 = 22.5 x 106/0C a2 = 13.5 x 106/°C | a3 = 17.0 x 106/°C Cast Iron Aluminum (2) Bronze (1) (3) В D.
Three rods of different materials are connected and placed between rigid supports at A and D, as shown. Properties for each of the three rods are given in the accompanying table. The bars are initially unstressed when the structure is assembled at 20°C. After the temperature has been increased to 120°C, determine (a) the normal stresses in the three rods. (b) the force exerted on the rigid supports. (c) the deflections of joints B and Crelative to rigid support A. Aluminum (1) Cast Iron (2) Bronze (3) L1 = 470 mm L2 = 170 mm L3 = 270 mm A1 = 1300 mm2 A2 = 2800 mm² A3 = 700 mm2 E1 = 70 GPa E2 = 155 GPa E3 = 100 GPa a1 = 22.5 x 106/0C a2 = 13.5 x 106/°C | a3 = 17.0 x 106/°C Cast Iron Aluminum (2) Bronze (1) (3) В D.
Chapter2: Loads On Structures
Section: Chapter Questions
Problem 1P
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