7-2Problem 7-2Section of a shaft containing agrinding-relief groove. Unlessotherwise specified, the diameter atthe root of the groove d, = d - 2r,and though the section of diameter dis ground, the root of the groove isstill a machined surface.The section of shaft shown in the figure is to be designed to approximate relative sizes ofd = 0.75D and r = D/20 with diameter d conforming to that of standard rolling-bearing boresizes. The shaft is to be made of SAE 2340 steel, heat-treated to obtain minimum strengths inthe shoulder area of 175 kpsi ultimate tensile strength and 160 kpsi yield strength with a Brinellhardness not less than 370. At the shoulder the shaft is subjected to a completely reversedbending moment of 600 lbf in, accompanied by a steady torsion of 400 lbf in. Use a designfactor of 2.5 and size the shaft for an infinite life using the DE-ASME Elliptic criterion.

Answered: 7-2 Problem 7-2 Section of a shaft…

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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