Solve Problem 15.3 using a computer program.

For the plane truss shown in Figure P15 -3, bar element 2 is subjected to a uniform temperature rise of T = 60 °F. Let E = 30 × 106 psi, A = 2 in2, and a = 7.0 × 10-6 (in./in.)/ °F. The lengths of the truss elements are shown in the figure. Determine the stresses in each bar.

Transcribed Image Text:

2. (2) 10 ft 45° 45° (3 10 ft