Question 1 A 0.5 mm 250 mm 300 mm B Magnesium A = 2000 mm² E=45 GPa α = 26 X 10-6/°C Aluminum A = 800 mm² E = 75 GPa a = 23 x 10-6°C 5 pts At room temperature (20°C) a 0.5-mm gap exists between the ends of the rods shown. At a later time when the temperature has reached 120°C. (a) The normal stress in the aluminum rod (MPa) = Question 2 0.5 mm 300 mm -250 mm B Magnesium A = 2000 mm E=45 GPa a = 26 × 10-6/°C Aluminum A = 800 mm² E = 75 GPa a = 23 x 10-6°C 5 pts At room temperature (20°C) a 0.5-mm gap exists between the ends of the rods shown. At a later time when the temperature has reached 120°C. (b)The change in length of the aluminum rod (mm) =
Question 1 A 0.5 mm 250 mm 300 mm B Magnesium A = 2000 mm² E=45 GPa α = 26 X 10-6/°C Aluminum A = 800 mm² E = 75 GPa a = 23 x 10-6°C 5 pts At room temperature (20°C) a 0.5-mm gap exists between the ends of the rods shown. At a later time when the temperature has reached 120°C. (a) The normal stress in the aluminum rod (MPa) = Question 2 0.5 mm 300 mm -250 mm B Magnesium A = 2000 mm E=45 GPa a = 26 × 10-6/°C Aluminum A = 800 mm² E = 75 GPa a = 23 x 10-6°C 5 pts At room temperature (20°C) a 0.5-mm gap exists between the ends of the rods shown. At a later time when the temperature has reached 120°C. (b)The change in length of the aluminum rod (mm) =
Chapter2: Loads On Structures
Section: Chapter Questions
Problem 1P
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Transcribed Image Text:Question 1
A
0.5 mm
250 mm
300 mm
B
Magnesium
A = 2000 mm²
E=45 GPa
α = 26 X 10-6/°C
Aluminum
A = 800 mm²
E = 75 GPa
a = 23 x 10-6°C
5 pts
At room temperature (20°C) a 0.5-mm gap exists between the ends of the rods shown. At a
later time when the temperature has reached 120°C.
(a) The normal stress in the aluminum rod (MPa) =

Transcribed Image Text:Question 2
0.5 mm
300 mm
-250 mm
B
Magnesium
A = 2000 mm
E=45 GPa
a = 26 × 10-6/°C
Aluminum
A = 800 mm²
E = 75 GPa
a = 23 x 10-6°C
5 pts
At room temperature (20°C) a 0.5-mm gap exists between the ends of the rods shown. At a
later time when the temperature has reached 120°C.
(b)The change in length of the aluminum rod (mm) =
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