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. Find the stress in each rod if the temperature rises 35°C after a load W = 150 kN is applied. The coefficients of linear expansion are 11.7 um/(m-°C) for steel and 18.9 µm/(m-°C) for bronze. Bronze L = 3 m A = 1300 mm? E = 83 GPa Steel L = 1.5 m A = 320 mm? E = 200 GPa +1m - 2.5 m 1.5 m W
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. Find the stress in each rod if the temperature rises 35°C after a load W = 150 kN is applied. The coefficients of linear expansion are 11.7 um/(m-°C) for steel and 18.9 µm/(m-°C) for bronze. Bronze L = 3 m A = 1300 mm? E = 83 GPa Steel L = 1.5 m A = 320 mm? E = 200 GPa +1m - 2.5 m 1.5 m W
Chapter2: Loads On Structures
Section: Chapter Questions
Problem 1P
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
Transcribed Image Text: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. Find
the stress in each rod if the temperature rises
35°C after a load W = 150 kN is applied. The
coefficients of linear expansion are 11.7
um/(m-°C) for steel and 18.9 µm/(m-°C) for
bronze.
Bronze
L = 3 m
A = 1300 mm?
E = 83 GPa
Steel
L = 1.5 m
A = 320 mm?
+1m -E= 200 GPa
2.5 m
1.5 m
What is the stress in the bronze rod (in MPa)?
Your answer
What is the stress in the steel rod (in MPa)?
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