Question 2(b) : Three bars each made of different materials are connected together and placed between two walls when the

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Question 2 B Three Bars Each Made Of Different Materials Are Connected Together And Placed Between Two Walls When The 1 (41.94 KiB) Viewed 58 times

Question 2(b) : Three bars each made of different materials are connected together and placed between two walls when the temperature is Ti Determine the force exerted on the rigid supports when the temperature becomes T . The material properties and cross-sectional area of each bar are given in the figure. Steel Brass Copper Est = 200 G Pa Ebr = 100 GPa Ecu = 120 GPa Take : 12(10-6)/Cabr 21(106)/C cu = 17(10-)/°C T = 12 °C Acu = 515 mm T2 = 13 °C | A = 200 mm2 Abr = 450 mm A= 295 mm Amm 200 mm Solution : 100 mm (++)0 = 0- 0= 1 (12)(106).A+ 1 (21)(10-)(0-2)+ 1(17)(10)(0.1)... AF 0.2F 0.1F 200(10-)200(10) 450(10- 100(10) 515(10- 120(109) F= N