The shaft of Fig. 1 does not rotate, and is simply supported at A and B. The element at C is on the top surface; the element at D is at the elevation of the shaft axis.
(a) Draw a view of the element at C with sides parallel and perpendicular to the shaft axis; show arrows representing stresses, together with numerical values.
(b) Draw a view for the element at C, properly oriented with respect to the shaft axis, which has the maximum shearing stress. Show arrows and numerical values for all stresses acting.
(c) Work part (b) for the element at D.
Figure 1

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