2. At a machined shaft shoulder the small diameter d is 25mm the large diameter D is 40mm. and the fillet radius is 2.5 The bending moment is 2300N mm and the steady torsion moment is 1800 Nmm The heat-treated steel shaft has an ultimate strength of Sut- 850Mpa The reliability goal is 0.99 (ka- 0.786, kb 0.870, ke 0.814) Determine the fatigue factor of safety of the design described in this section

2. At a machined shaft shoulder the small diameter d is 25mm the large diameter D is 40mm. and the fillet radius is 2.5 The bending moment is 2300N mm and the steady torsion moment is 1800 Nmm The heat-treated steel shaft has an ultimate strength of Sut- 850Mpa The reliability goal is 0.99 (ka- 0.786, kb 0.870, ke 0.814) Determine the fatigue factor of safety of the design described in this section

Elements Of Electromagnetics

7th Edition

ISBN:9780190698614

Author:Sadiku, Matthew N. O.

Publisher:Sadiku, Matthew N. O.

ChapterMA: Math Assessment

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Concept explainers

Torsion

In mechanical engineering, torque, torsion, and twisting moment are three of the most important concepts which have different meanings. Torque is the consequence of a moment of a force that produces an angular acceleration in a body or induces rotational kinetic energy in a body. For instance, in an automobile, the power transmission shaft is a body that is always under rotation due to the external torque acting on it, this torque is created by the engine.

Question

2. At a machined shaft shoulder the small diameter d is 25mm the large diameter D is 40mm, and the
fillet radius is 2.5 The bending moment is 2300N mm and the steady torsion moment is 1800 N mm The
heat-treated steel shaft has an ultimate strength of Sut- 850Mpa The reliability goal is 099 (ka-
0.786, kb 0.870, ke 0.814)
Determine the fatigue factor of safety of the design described in this section

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