고체역학 (Beer) — Transformations of Stress and Strain: Problem 7.86

7.85 The 38-mm-diameter shaft AB is made of a grade of steel for which the yield strength is \(\sigma_Y = 250 \text{ MPa}\). Using the maximum-shearing-stress criterion, determine the magnitude of the torque \(\mathbf{T}\) for which yield occurs when \(P = 240 \text{ kN}\). 7.86 Solve Prob. 7.85, using the maximum-distortion-energy criterion.