A hollow shaft made from AISI 4340 steel has an outer diameter D. of 4 in. and an innerdiameter Di of 2.5 in. The shaft rotates at 46 rpm for one hour each day. It is supportedby two bearings and loaded in the middle with a load W of 5500 lbf. The distance betweenthe bearings Lis 78 in. The maximum tensile stress due to bending for this type of cyclicloading is calculated using the following equation:8WLD,#(Dg – D{)What is the stress ratio for this type of cyclic loading? Would this shaft last for one yearassuming a safety factor of 2?

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A hollow shaft made from AISI 4340 steel has an outer diameter Do of 4 in. and an inne diameter Di of 2.5 in. The shaft rotates at 46 rpm for one hour each day. It is supporte by two bearings and loaded in the middle with a load W of 5500 lb:. The distance betwe the bearings Lis 78 in. The maximum tensile stress due to bending for this type of cycl loading is calculated using the following equation: 8WLD. #(D; – D{) What is the stress ratio for this type of cyclic loading? Would this shaft last for one ye: assuming a safety factor of 2?

A hollow shaft made from AISI 4340 steel has an outer diameter Do of 4 in. and an inne diameter Di of 2.5 in. The shaft rotates at 46 rpm for one hour each day. It is supporte by two bearings and loaded in the middle with a load W of 5500 lb:. The distance betwe the bearings Lis 78 in. The maximum tensile stress due to bending for this type of cycl loading is calculated using the following equation: 8WLD. #(D; – D{) What is the stress ratio for this type of cyclic loading? Would this shaft last for one ye: assuming a safety factor of 2?

Elements Of Electromagnetics

7th Edition

ISBN:9780190698614

Author:Sadiku, Matthew N. O.

Publisher:Sadiku, Matthew N. O.

ChapterMA: Math Assessment

Section: Chapter Questions

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Concept explainers

Slope and Deflection

The slope in a deflected beam is described as an angle in radians made by the tangent of the section with the original axis of the beam. The deflection at any point on the axis of the beam is defined as the lateral displacement of the point before and after loading.

Question

A hollow shaft made from AISI 4340 steel has an outer diameter D. of 4 in. and an inner
diameter Di of 2.5 in. The shaft rotates at 46 rpm for one hour each day. It is supported
by two bearings and loaded in the middle with a load W of 5500 lbf. The distance between
the bearings Lis 78 in. The maximum tensile stress due to bending for this type of cyclic
loading is calculated using the following equation:
8WLD,
#(Dg – D{)
What is the stress ratio for this type of cyclic loading? Would this shaft last for one year
assuming a safety factor of 2?

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