Calculate the reaction at rigid supports in kN. 2. Calculate the change in length of the aluminum rod in mm. 3. The normal stress in the steel rod in MPa.
Calculate the reaction at rigid supports in kN. 2. Calculate the change in length of the aluminum rod in mm. 3. The normal stress in the steel rod in MPa.
Chapter2: Loads On Structures
Section: Chapter Questions
Problem 1P
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1. Calculate the reaction at rigid supports in kN.
2. Calculate the change in length of the aluminum rod in mm.
3. The normal stress in the steel rod in MPa.
Transcribed Image Text:Two metal bars are attached to rigid supports as shown. A gap of 0.5 mm is observed between the bars at 20°C. If the
temperature is increased to 140°C, calculate the following:
0.5 mm
300 mm
250 mm
Stainless steel
A = 800 mm²
E = 190 GPa
α = 17.3 × 10-6/°C
A
Aluminum
A = 2000 mm²
E = 75 GPa
α = 23 × 16-6/°C
B
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