Problem

Using a computer program, solve the following problems. Solve Problem 15.3 using a comp...

Using a computer program, solve the following problems.

Solve Problem 15.3 using a computer program.

Problem 15.3

For the plane truss shown in Figure P15–3, bar element 2 is subjected to a uniform temperature rise of T = 50 ° 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. [Hint: See Eqs. (3.6.4) and (3.6.6) in Example 3.5 for the global and reduced [K matrices.]