Answered: A rotating shaft of 25-mm diameter is…

Elements Of Electromagnetics

7th Edition

ISBN:9780190698614

Author:Sadiku, Matthew N. O.

Publisher:Sadiku, Matthew N. O.

ChapterMA: Math Assessment

Section: Chapter Questions

Problem 1.1MA

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Question

A rotating shaft of 25-mm diameter is simply supported by bearing reaction forces R₁ and R₂. The shaft is loaded with a transverse load of 13 kN as shown in the figure. The shaft is made from AISI 1045 hot-rolled steel. The surface has been machined. Determine

a) The minimum static factor of safety based on yielding

b) the endurance limit adjusted as necessary with Marin factors

c) the minimum fatigue factor of safety based on achieving infinite life

d) if the fatigue factor of safety is less than 1, then estimate the life of the part in number of rotations

25 mm-
R₁
200 mm-
13 kN
Not to scale.
50 mm-
R₂

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