Part A For a hard aluminum notched part having notch dimension r = 0.75 in, geometric stress-concentration factor Kt = 2.8, material strength Sut = 50 kpsi, and bending loading type, find the Neuber factor, a (in inches). Part B Find the material's notch sensitivity, q. Part C Find the fatigue stress-concentration factor. Kf.

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The rotating shaft in the given figure is machined from AISI 1020 CD steel. It is subjected to a force of F = 6 kN. Find the minimum factor of safety for fatigue based on infinite life. Be sure to check for yielding. 25 D. ] -35 D. 3 R. Dimensions in millimeters 500 -175- -50 D. 25 D. 20 20 20 180 280 20 What are the values of the theoretical stress-concentration factor, the notch sensitivity, and the fatigue stress concentration-factor? The value of the theoretical stress-concentration factor is The value of the notch sensitivity is (Round the final answer to two decimal places.) The value of the fatigue stress-concentration factor is (Round the final answer to three decimal places.)

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