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A solid shaftshown belowis loaded in bending and torsionwith steady rotation. The total bending moment and torque diagrams are also given. The selected shaft
steel material has an ultimate tensile strength ???=68????, initial yield stress ??=57????, and fully corrected factorsforendurance limit,????????????=0.60.
(a)(6points) Determine the factor of safety at point D of the shaft using DE-ASME Ellipticcriterion.Assume ??=1.8and ???=2.4for point D.
(b) (2points)check the safety factor at point Ausing von Mises (or Distorson Energy)criterion
Sample Solution
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