The lower ends of the three bars in the figure are at the same level before the rigid homogeneous W = 100 kN block is attached. The temperature of the bars is then increased by 80°c. The block is assumed to remain horizontal after all deformations have occurred. The properties of the bars are shown in the table. STEEL BRÖNZE Length, L 1.0 m 500 mm? 200 GPa 1.6 m 900 mm? Area, A Modulus of Elasticity, E Coefficient of Thermal Expansion, a 83 GPa 11.7x10-6 mm/ (mm-°c) 18x10-6 mm/ (mm-°C) Calculate the stress developed in the Bronze bronze bar. Steel Steel A B C Calculate the stress developed in the steel bar. FIGURE 10
The lower ends of the three bars in the figure are at the same level before the rigid homogeneous W = 100 kN block is attached. The temperature of the bars is then increased by 80°c. The block is assumed to remain horizontal after all deformations have occurred. The properties of the bars are shown in the table. STEEL BRÖNZE Length, L 1.0 m 500 mm? 200 GPa 1.6 m 900 mm? Area, A Modulus of Elasticity, E Coefficient of Thermal Expansion, a 83 GPa 11.7x10-6 mm/ (mm-°c) 18x10-6 mm/ (mm-°C) Calculate the stress developed in the Bronze bronze bar. Steel Steel A B C Calculate the stress developed in the steel bar. FIGURE 10
Chapter2: Loads On Structures
Section: Chapter Questions
Problem 1P
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Transcribed Image Text:The lower ends of the three bars in the figure are
rigid homogeneous W =
at the same level
before
the
100
kN
block
is
attached.
The
temperature of the bars is then increased by 80°c. The block is assumed
to remain horizontal after all deformations have occurred. The properties
of the bars are shown in the table.
STEEL
BRÖNZE
Length, L
Area, A
Modulus of Elasticity, E
Coefficient of Thermal Expansion, a
1.0 m
1.6 m
500 mm2
900 mm?
200 GPa
83 GPa
11.7x10-6 mm/ (mm-°c)
18x10-6 mm/ (mm-°C)
Calculate the stress developed in the
bronze bar.
Bronze
Steel
Steel
A
Calculate the stress developed in the steel bar.
FIGURE 10
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