Question

The cantilevered bar in the figure is made from a ductile material and is statically loaded with $F_y = 200$ lbf and $F_x = F_z = 0$. Analyze the stress situation in rod AB by obtaining the following information. Determine the minimum factor of safety for fatigue based on infinite life, using the Goodman criterion. If the life is not infinite, conservatively estimate the number of cycles. The force F is applied as a repeated load. The material is AISI 1018 CD steel. The fillet radius at the wall is 0.1 in, with theoretical stress concentrations of 1.5 for bending, 1.2 for axial, and 2.1 for torsion.

          The cantilevered bar in the figure is made from a ductile material and is statically loaded with $F_y = 200$ lbf and $F_x = F_z = 0$. Analyze the stress situation in rod AB by obtaining the following information. Determine the minimum factor of safety for fatigue based on infinite life, using the Goodman criterion. If the life is not infinite, conservatively estimate the number of cycles. The force F is applied as a repeated load. The material is AISI 1018 CD steel. The fillet radius at the wall is 0.1 in, with theoretical stress concentrations of 1.5 for bending, 1.2 for axial, and 2.1 for torsion.

The cantilevered bar in the figure is made from a ductile material and is statically loaded with Fy = 200 lbf and Fx = Fz = 0. Analyze the stress situation in rod AB by obtaining the following information. Determine the minimum factor of safety for fatigue based on infinite life, using the Goodman criterion. If the life is not infinite, conservatively estimate the number of cycles. The force F is applied as a repeated load. The material is AISI 1018 CD steel. The fillet radius at the wall is 0.1 in, with theoretical stress concentrations of 1.5 for bending, 1.2 for axial, and 2.1 for torsion.

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