고체역학 (Gere) — Analysis of Stress and Strain: Problem 7.2-12

7.2-12 Solve the preceding problem if the normal and shear stresses acting on the element are \(\sigma_x = 2100\text{ kPa}\), \(\sigma_y = 300\text{ kPa}\), and \(\tau_{xy} = -560\text{ kPa}\), and the seam is oriented at an angle of \(22.5^\circ\) to the element. (Note: The "preceding problem" 7.2-11 specifies: "Determine the normal and shear stresses acting on a seam oriented at an angle... to the element, as shown in the figure part b. Show these stresses on a sketch of an element having its sides parallel and perpendicular to the seam.")