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7.10 A rigid bar is suspended by three equally spaced wires of equal length. The outer wires are steel and are 2 mm in diameter, the centre wire is copper and is 5 mm in diameter. If the weight of the rigid bar is 2,25 kN, calculate the load carried by each wire. If the temperature of the system is now raised by 90 °C, what will the magnitude and nature of the resultant stresses set up in the steel and copper wires be. (Let EST = 200 GPa; Ecu = 100 GPa; aST = 12 x 10_6/°C; acu = 18 x 10-6/°C?)

7.10 A rigid bar is suspended by three equally spaced wires of equal length. The outer wires are steel and are 2 mm in diameter, the centre wire is copper and is 5 mm in diameter. If the weight of the rigid bar is 2,25 kN, calculate the load carried by each wire. If the temperature of the system is now raised by 90 °C, what will the magnitude and nature of the resultant stresses set up in the steel and copper wires be. (Let EST = 200 GPa; Ecu = 100 GPa; aST = 12 x 10_6/°C; acu = 18 x 10-6/°C?)

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
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7.10 A rigid bar is suspended by three equally spaced wires of equal length. The
outer wires are steel and are 2 mm in diameter, the centre wire is copper and
is 5 mm in diameter. If the weight of the rigid bar is 2,25 kN, calculate the load
carried by each wire. If the temperature of the system is now raised by 90 °C, what will the magnitude and nature of the resultant stresses set up in the steel
and copper wires be. (Let EST = 200 GPa; Ecu = 100 GPa; aST = 12 x 10_6/°C;
acu = 18 x 10-6/°C?)

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