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shown in Figure 4. Columns A and B, both with a diameter of X12 mm are made of steel, and column C with X13 mm diameter is made of aluminium. The three columns are subjected to a temperature rise of 80°C. The elastic modulus of steel and aluminium are 200 GPa and 70 GPa, respectively, and the coefficient of thermal expansion for steel and aluminium are 12x106/°C and 24x106/°C, respectively. Due to the temperature rise, solve the following questions: a. Calculate the axial forces exerted on the steel and aluminium columns. b. Determine the normal stresses induced on the steel and aluminium columns. (17%) (8 %)

shown in Figure 4. Columns A and B, both with a diameter of X12 mm are made of steel, and column C with X13 mm diameter is made of aluminium. The three columns are subjected to a temperature rise of 80°C. The elastic modulus of steel and aluminium are 200 GPa and 70 GPa, respectively, and the coefficient of thermal expansion for steel and aluminium are 12x106/°C and 24x106/°C, respectively. Due to the temperature rise, solve the following questions: a. Calculate the axial forces exerted on the steel and aluminium columns. b. Determine the normal stresses induced on the steel and aluminium columns. (17%) (8 %)

Elements Of Electromagnetics
Elements Of Electromagnetics
7th Edition
ISBN:9780190698614
Author:Sadiku, Matthew N. O.
Publisher:Sadiku, Matthew N. O.
ChapterMA: Math Assessment
Section: Chapter Questions
Problem 1.1MA
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A rigid block with a weight of X11 KN is supported by 3 columns (of 2 m height) as shown in Figure 4. Columns A and B, both with a diameter of X12 mm are made of steel, and column C with X13 mm diameter is made of aluminium. The three columns are subjected to a temperature rise of 80°C. The elastic modulus of steel and aluminium are 200 GPa and 70 GPa, respectively, and the coefficient of thermal expansion for steel and aluminium are 12x10-6°C and 24x10-6°C, respectively. Due to the temperature rise, solve the following questions: a. Calculate the axial forces exerted on the steel and aluminium columns. b. Determine the normal stresses induced on the steel and aluminium columns. A 110mm DIA Rigid block C 130mm DIA 1.5 m 400 KN 1.5 m B 2 m 110mm DIA (17%) (8%)
Transcribed Image Text:A rigid block with a weight of X11 KN is supported by 3 columns (of 2 m height) as shown in Figure 4. Columns A and B, both with a diameter of X12 mm are made of steel, and column C with X13 mm diameter is made of aluminium. The three columns are subjected to a temperature rise of 80°C. The elastic modulus of steel and aluminium are 200 GPa and 70 GPa, respectively, and the coefficient of thermal expansion for steel and aluminium are 12x10-6°C and 24x10-6°C, respectively. Due to the temperature rise, solve the following questions: a. Calculate the axial forces exerted on the steel and aluminium columns. b. Determine the normal stresses induced on the steel and aluminium columns. A 110mm DIA Rigid block C 130mm DIA 1.5 m 400 KN 1.5 m B 2 m 110mm DIA (17%) (8%)
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what is the formula used in the -δp + δt = -δp + δt = -δp + δt part at the top?

what is the difference between the δp and δt? Why do they have different solutions in the following line of working?

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