고체역학 (Beer) — Transformations of Stress and Strain: Problem 7.155

7.155 Solve Prob. 7.154, assuming that the gage forms an angle \(\beta = 35^\circ\) with a horizontal plane. (Problem 7.154: A single strain gage forming an angle \(\beta = 18^\circ\) with a horizontal plane is used to determine the gage pressure in the cylindrical steel tank shown. The cylindrical wall of the tank is 6 mm thick, has a 600-mm inside diameter, and is made of a steel with \(E = 200 \text{ GPa}\) and \(\nu = 0.30\). Determine the pressure in the tank indicated by a strain gage reading of \(280 \mu\).)