A solid circular shaft OABC with a diameter of 30 mm is supported at bearing O and B, and subjected to the loadings as shown in Figure Q1. Dimensions are in mm. The shaft is made of an alloy with a...

 A solid circular shaft OABC with a diameter of 30 mm is supported at bearing O and B, and
subjected to the loadings as shown in Figure Q1. Dimensions are in mm. The shaft is made of
an alloy with a yield strength of 90 MPa. The diameter of the machine component at A is 300
mm. Based on the shaft section at A:
(a) Calculate the stresses acting at the critical point of the section.
(b) Determine whether the material would yield based on the von Mises, and Tresca yield
criterion.

(c) Draw the yield loci of both the yield criteria and indicate the operating stress state on
the plot.