For the plane truss shown in Figure P15 4, bar element 1 is subjected to a uniform temperature drop of 40 deg F Let E 30 Atilde 106 psi, A 2 in2, and a 7 0 Atilde 10 6 (in in ) deg F The lengths of the truss elements are shown in the figure Determine the stresses in each bar 2) (3) 10 ft 30 30...

f T T f f 1x 8400 lb f 1y 14549 lb f 2x 8400 lb f 2y 14549 lb Boundary c ...

For the plane truss shown in Figure P15-4, bar element 1 is subjected to a uniform temperature

Question:

For the plane truss shown in Figure P15-4, bar element 1 is subjected to a uniform temperature drop of 40°F. Let E = 30 Ã— 106 psi, A = 2 in2, and a = 7.0 Ã— 10-6 (in./in.)/°F. The lengths of the truss elements are shown in the figure. Determine the stresses in each bar.