9. The horizontal steel rod, 2.5-m-long, and 1,200 mm in cross-sectional area, is secured between two walls as shown in Fig. ESS4-SP-031. If the rod is stress-free at 20°C, compute the stress when the temperature has dropped to -20°C. Assume that (a) the walls do not move, and (5) the walls move together a distance A = 0.5 mm. Use a = 11.7 x 10-6/°C and E = 200 GPa. A = 1200 mm² L = 2.5 m Fig. ESS4-SP-031
9. The horizontal steel rod, 2.5-m-long, and 1,200 mm in cross-sectional area, is secured between two walls as shown in Fig. ESS4-SP-031. If the rod is stress-free at 20°C, compute the stress when the temperature has dropped to -20°C. Assume that (a) the walls do not move, and (5) the walls move together a distance A = 0.5 mm. Use a = 11.7 x 10-6/°C and E = 200 GPa. A = 1200 mm² L = 2.5 m Fig. ESS4-SP-031
Chapter2: Loads On Structures
Section: Chapter Questions
Problem 1P
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