For the plane stress plate fixed along the left and right sides and subjected to a unifo...

For the plane stress plate fixed along the left and right sides and subjected to a uniform temperature rise of 50 ° F as shown in Figure P15–17, determine the stresses in each element. Let E = 10 × 10⁶ psi, n = 0:30, α = 12:5 × 10^–6 (in./in.)/ ° F, and in. The coordinates (in inches) are shown in the figure. (Hint: The nodal displacements are all equal to zero. Therefore, the stresses can be determined from