3 The stresses at a point on the surface of a generator shaft are ox = -50 MPa, ơy = 30 MPa and Txy = -40 MPa as shown in Figure Q3. (Consider only the in-plane stresses. Note: the radius of the...

Extracted text: 3 The stresses at a point on the surface of a generator shaft are ox = -50 MPa, ơy = 30 MPa and Txy = -40 MPa as shown in Figure Q3. (Consider only the in-plane stresses. Note: the radius of the circle is given by R = J) (a) Construct the Mohr's circle showing the centre of the circle as well as points A and B. (b) Determine the principal stresses. (c) Show the principal stresses on a sketch of a properly oriented element. (d) Determine the maximum shear stresses. (e) Show the maximum shear stresses on a sketch of a properly oriented element. MPа В A MPa MPа Figure Q3