The shaft above is made of AISI 1006 CD steel (Sy = 280 MPa). It is subjected to

Question

The shaft above is made of AISI 1006 CD steel (Sy = 280 MPa). It is subjected to lateral force, F = 0.55 kN; axial force, P = 4.0 kN; and a torque, T = 25 N-m. Plot the ductile failure surface for this material based on the maximum shear stress and maximum distortion energy theories. (The plot may be done by hand or digitally but must be drawn to scale.) Determine the factor of safety at the point labeled A for ductile yielding based on the maximum shear stress theory. In your analysis, provide an element sketch showing all stress components (e.g. bending stress, transverse shear stress, axial stress, torsional shear stress) present, draw Mohr's circle and determine principle stresses, and plot the in-plane principle stresses and a 'load line' on the failure plot from problem 1. Repeat problem 2 using instead, the maximum distortion energy theory. Repeat problems 2 and 3 for the point labeled B.

Explanation / Answer

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