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Q17 A composite bar of 20mm x 20mm cross section is made up of three...

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Q17 A composite bar of 20mm x 20mm cross section is made up of three flat bars as shown in figure All the three bars are rigidly connected at the ends when the temperature is 20 C determine i the stress developed in each bar when the temperature of the composite bar is raised to 60 C ii the final stresses in each bar when the load of 17 6 kN is applies to the composite bar Es 200 Gpa EAI 80 Gpa as 22 x 10 C aA 11 x 10 C 20 mm STEEL ALUMINIUM STEEL 20 mm 8mm 4 mm 8 mm

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