PSAD Refresher 59: Stresses due to Thermal Deformation
Автор: Engr. Harf Miranda (Sir Harf Engineering Tutorial)
Загружено: 2025-02-12
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SITUATION: The rigid bar ABC is supported by a pin at B and two vertical steel rods. Initially the bar is horizontal, and the rods are stress-free. The temperature of the rod at A is decreased by 40°C. Neglect the weight of bar ABC. Use α = 11.7 10-6/°C and E = 200 GPa for steel.
1. Calculate the stress in the rod at A (MPa).
A. 12.96 C. 10.80
B. 25.92 D. 86.40
2. Calculate the stress in the rod at C (MPa).
A. 25.92 C. 86.40
B. 12.96 D. 10.80
3. Calculate the vertical displacement of C, in mm.
A. 0.033 C. 0.065
B. 0.812 D. 0.109
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