The horizontal steel rod, 3 m long and 1250 mm2 in cross-sectional area, is secured between two walls as shown in Fig. (a). If the rod is stress-free at 20o Compute the stress when the temperature has dropped to -20 oC. Assume that (1) the walls do not move and (2) the walls move together a distance D ¼ 0:5 mm. Use α = 11.7 x 10-6 oC and E = 200 GPa.
The horizontal steel rod, 3 m long and 1250 mm2 in cross-sectional area, is secured between two walls as shown in Fig. (a). If the rod is stress-free at 20o Compute the stress when the temperature has dropped to -20 oC. Assume that (1) the walls do not move and (2) the walls move together a distance D ¼ 0:5 mm. Use α = 11.7 x 10-6 oC and E = 200 GPa.
International Edition---engineering Mechanics: Statics, 4th Edition
4th Edition
ISBN:9781305501607
Author:Andrew Pytel And Jaan Kiusalaas
Publisher:Andrew Pytel And Jaan Kiusalaas
Chapter1: Introduction To Statics
Section: Chapter Questions
Problem 1.3P: Convert the following: (a) 400lbft to knm; (b) 6m/s to mi/h; (c) 20lb/in.2 to Pa; and (d)...
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Topic: Thermal & Torsional Stress
- The horizontal steel rod, 3 m long and 1250 mm2 in cross-sectional area, is secured between two walls as shown in Fig. (a). If the rod is stress-free at 20o Compute the stress when the temperature has dropped to -20 oC. Assume that (1) the walls do not move and (2) the walls move together a distance D ¼ 0:5 mm. Use α = 11.7 x 10-6 oC and E = 200 GPa.
Transcribed Image Text:AT = -20°C
AT = -20°C
P
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