The rigid horizontal bar ABC of negligible mass is connected to two rods as shown in...
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The rigid horizontal bar ABC of negligible mass is connected to two rods as shown in the figure. If the system is initially stress-free, calculate the temperature change that will cause a tensile stress of 90 MPa in the brass rod. Assume that both rods are subjected to the same change in temperature. -3 m B C Brass L=2m A = 1200 mm E 100 GPa a = 18.7 x 10-1C -2 m Copper L=3m A = 1500 mm E = 120 GPa a = 16.8 x 10-6/C The rigid horizontal bar ABC of negligible mass is connected to two rods as shown in the figure. If the system is initially stress-free, calculate the temperature change that will cause a tensile stress of 90 MPa in the brass rod. Assume that both rods are subjected to the same change in temperature. -3 m B C Brass L=2m A = 1200 mm E 100 GPa a = 18.7 x 10-1C -2 m Copper L=3m A = 1500 mm E = 120 GPa a = 16.8 x 10-6/C
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