고체역학 (Beer) — Transformations of Stress and Strain: Problem 7.119

7.119 For the tank of Prob. 7.117, determine the range of values of $\beta$ that can be used if the shearing stress parallel to the weld is not to exceed 1350 psi when the gage pressure is 85 psi. (Reference Data from Prob. 7.117: The pressure tank shown has a 0.375-in. wall thickness and butt-welded seams forming an angle $\beta$ with a transverse plane. Figure P7.117 shows a diameter of 1.6 m, which corresponds to approximately 60 inches in US customary versions of this problem.)