고체역학 (Beer) — Transformations of Stress and Strain: Problem 7.140

7.140 through 7.143 For the given state of plane strain, use Mohr’s circle to determine (a) the orientation and magnitude of the principal strains, (b) the maximum in-plane shearing strain, (c) the maximum shearing strain. 7.140 \(\epsilon_x = +60 \mu\), \(\epsilon_y = +240 \mu\), \(\gamma_{xy} = -50 \mu\)