For the plane truss shown in Figure P15 -6, bar element 2 is subjected to a uniform temperature drop of T = 30°C. Let E = 70 GPa, A = 4 × 10-2 m2, and a = 23 × 10-6 (mm/mm)/°C. Determine the stresses in each bar and the displacement of node 1.

Transcribed Image Text:

2, 3 m 30° 30°