For the linear-strain element shown in Figure P8–6, determine the strains εx; εy, and γx...

For the linear-strain element shown in Figure P8–6, determine the strains ε_x; ε_y, and γ_xy. Evaluate these strains at the centroid of the element; then evaluate the stresses σx; σy, and τ_xy at the centroid. The coordinates of the nodes are shown in units of millimeters. Let E = 210 GPa, n = 0:25, and t = 10 mm. Assume plane stress conditions apply. Use the nodal displacements given in Problem 8.5 (converted to

millimeters). Note that the β’s and g’s from the example in Section 8.2 cannot be used here as the element in Figure P8–6 is oriented differently than the one in Figure 8–3.