12. A cold drawn steel rod of circular cross-section is subjected to a variable bending moment of 565 N- m to 1130 N-m as the axial load varies from 4500 N to 13 500 N. The maximum bending moment occurs at the same instant that the axial load is maximum. Determine the required diameter of the rod for a factor of safety 2. Neglect any stress concentration and column effect. Assume the following values: = 550 MPa = 470 MPa = 0.85 = 0.89 Ultimate strength Yield strength Size factor Suface finish factor = 1.0 for bending = 0.7 for axial load Correction factors %3D The endurance limit in reversed bending may be taken as one-half the ultimate strength. [Ans. 41 mm]
12. A cold drawn steel rod of circular cross-section is subjected to a variable bending moment of 565 N- m to 1130 N-m as the axial load varies from 4500 N to 13 500 N. The maximum bending moment occurs at the same instant that the axial load is maximum. Determine the required diameter of the rod for a factor of safety 2. Neglect any stress concentration and column effect. Assume the following values: = 550 MPa = 470 MPa = 0.85 = 0.89 Ultimate strength Yield strength Size factor Suface finish factor = 1.0 for bending = 0.7 for axial load Correction factors %3D The endurance limit in reversed bending may be taken as one-half the ultimate strength. [Ans. 41 mm]
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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![12. A cold drawn steel rod of circular cross-section is subjected to a variable bending moment of 565 N-
m to 1130 N-m as the axial load varies from 4500 N to 13 500 N. The maximum bending moment
occurs at the same instant that the axial load is maximum. Determine the required diameter of the rod
for a factor of safety 2. Neglect any stress concentration and column effect. Assume the following
values:
= 550 MPa
= 470 MPa
= 0.85
= 0.89
= 1.0 for bending
= 0.7 for axial load
Ultimate strength
Yield strength
Size factor
Suface finish factor
Correction factors
The endurance limit in reversed bending may be taken as one-half the ultimate strength. [Ans. 41 mm]](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2Fb32104a3-3d69-4b45-ab3a-3342d236e3a3%2F5482d980-c2d6-470c-b752-13e73679c18c%2Flpnvnfd_processed.png&w=3840&q=75)
Transcribed Image Text:12. A cold drawn steel rod of circular cross-section is subjected to a variable bending moment of 565 N-
m to 1130 N-m as the axial load varies from 4500 N to 13 500 N. The maximum bending moment
occurs at the same instant that the axial load is maximum. Determine the required diameter of the rod
for a factor of safety 2. Neglect any stress concentration and column effect. Assume the following
values:
= 550 MPa
= 470 MPa
= 0.85
= 0.89
= 1.0 for bending
= 0.7 for axial load
Ultimate strength
Yield strength
Size factor
Suface finish factor
Correction factors
The endurance limit in reversed bending may be taken as one-half the ultimate strength. [Ans. 41 mm]
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