The shaft shown in the figure is supported on bearings located at A and D. The...

  

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The shaft shown in the figure is supported on bearings located at A and D. The shaft is made from steel with a yield strength of 400 MPa and an ultimate strength of 600 MPa. The shaft has a machined surface finish. The geometric stress concentration at point A, B, C, and D is 1.65. The material has a notch sensitivity of 0.896. All dimensions are in mm. If the shaft rotates, with the force F remaining fixed, find the maximum force F that can be applied so that the shaft has infinite life. Use a factor of safety of 2.0. A B C D -250- -75- -100- -125- F R₁ -10 30 35 32 32 -38 R₁₂ -10 The shaft shown in the figure is supported on bearings located at A and D. The shaft is made from steel with a yield strength of 400 MPa and an ultimate strength of 600 MPa. The shaft has a machined surface finish. The geometric stress concentration at point A, B, C, and D is 1.65. The material has a notch sensitivity of 0.896. All dimensions are in mm. If the shaft rotates, with the force F remaining fixed, find the maximum force F that can be applied so that the shaft has infinite life. Use a factor of safety of 2.0. A B C D -250- -75- -100- -125- F R₁ -10 30 35 32 32 -38 R₁₂ -10