The rigid plate ABC shown in figure 2, was positioned on top of two identical steel posts, and the aluminum post was 0.1mm shorter than the steel posts at temperature of 50°C, if the allowable compressive stress in steel is limited to 120 MPa and in aluminum to 150 MPa, what is the maximum possible load P that can be supported on the rigid plate at temperature of 10°C ? P steel steel F T E = 200 GPa - Aluminum 50'd L= 250 MM A = 1600 mu X= 12 x10 Tll = 200 Ma Comp %3D 400 ma Aluminuur Post E = 73 GPa A = 2400 mme K = 23 x10% 150 MP Figure 2 ail Comp

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The rigid plate ABC shown in figure 2, was positioned on top of two identical steel
posts, and the aluminum post was 0.lmm shorter than the steel posts at temperature of
50°C, if the allowable compressive stress in steel is limited to 120 MPa and in
aluminum to 150 MPa, what is the maximum possible load P that can be supported on
the rigid plate at temperature of 10°C ?
P
A
steel
ryid
steel F T
E = 200 GPa
-Aluminu
50'd
L= 250 Mm
A = 1600 mu
X = 12 x10%2
ll = 200 MPa
Comp
Aluminum Post.
E = 73 GPa
A = 2400 mn?
23 x 10%2
400 mm
A0o mM
%3D
=
150 MPa
K =
Figure 2
all
Comp
Transcribed Image Text:The rigid plate ABC shown in figure 2, was positioned on top of two identical steel posts, and the aluminum post was 0.lmm shorter than the steel posts at temperature of 50°C, if the allowable compressive stress in steel is limited to 120 MPa and in aluminum to 150 MPa, what is the maximum possible load P that can be supported on the rigid plate at temperature of 10°C ? P A steel ryid steel F T E = 200 GPa -Aluminu 50'd L= 250 Mm A = 1600 mu X = 12 x10%2 ll = 200 MPa Comp Aluminum Post. E = 73 GPa A = 2400 mn? 23 x 10%2 400 mm A0o mM %3D = 150 MPa K = Figure 2 all Comp
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