Same as Problem 1 except for the element of Fig. 1. For part (a), take σyp = 400 MPa and for part (c) take σult = 200 MPa and σuc = 760 MPa.
Figure 1

Problem 1
The state of stress for a material is shown in Fig. 2.
(a) Find the Fs by the maximum shear theory if the material is 1045 steel in the hot-rolled condition.
(b) Find the Fs by the von Mises–Hencky theory.
(c) Find the Fs if the material is Class 30 cast iron.
Figure 2

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