Three aluminum rods support the rigid L-shaped bracket BCF as shown in the figure. Determine the stress in each rod if rod FG is cooled by 50°C. All three rods have the same cross-sectional area of 1000 mm2. Use 73.1 GPa and 23 x 10-6/ °C for the modulus of elasticity and the coefficient of thermal expansion of aluminum, respectively. E 2 m G 1m D 1.1 m B 125 m 15 m

Structural Analysis
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Chapter2: Loads On Structures
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Three aluminum rods support the
rigid L-shaped bracket BCF as
shown in the figure. Determine the
stress in each rod if rod FG is cooled
by 50°C. All three rods have the
same cross-sectional area of 1000
mm2. Use 73.1 GPa and 23 x 10-6/
°C for the modulus of elasticity and
the coefficient of thermal expansion
of aluminum, respectively.
2 m
1 m
D
1.1 m
B.
1 m
1.25 m
1.5 m
Transcribed Image Text:Three aluminum rods support the rigid L-shaped bracket BCF as shown in the figure. Determine the stress in each rod if rod FG is cooled by 50°C. All three rods have the same cross-sectional area of 1000 mm2. Use 73.1 GPa and 23 x 10-6/ °C for the modulus of elasticity and the coefficient of thermal expansion of aluminum, respectively. 2 m 1 m D 1.1 m B. 1 m 1.25 m 1.5 m
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