Problem 7.5 For the plane stress segment shown above, the stress components are given by ox-50 N/mm², oy=60 N/mm² and Txy-30 N/mm². Calculate a) the principal stresses, b) the corresponding angle of rotation, d) Furthermore, draw Mohr's circle for the stress state shown, c) calculate the maximum shear stress. Ans: a) 0₁-85.40 N/mm², 02-24. 59 N/mm², b) 0₁-40.27 deg, Tmax=30.41 N/mm²
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