Q2: A cold drawn steel rod of circular cross-section is subjected to a variable bending momentof 565 N.m to 1130 N-m as the axial load variesfrom 4500 N to 13 500 N.Determine the required diameter of the rod for afactor of safety 2. Neglect any stressconcentration and column effect. Assume thefollowingvalues:Ultimate strength = 550 MPa%3DYield strength = 470 MPaSize factor = 0.85Surface finish factor = 0.89Correction factors = 1.0 for bending = 0.7 for axial%3DloadThe endurance limit in reversed bending may betaken as one-half the ultimate strength.

Calculate the mean bending moment,…

Q2: 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. Determine the required diameter of the rod for a factor of safety 2. Neglect any stress

Q2: 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. Determine the required diameter of the rod for a factor of safety 2. Neglect any stress

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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Concept explainers

Combined Loading

Any functioning component, such as machine parts, structural members, pressure vessels, and so on, are all under the influence of more than one force. When anybody is under the influence of more than one force such as shear forces, bending moments, axial forces, torsion, and so on, then such body is said to be under combined loading. A very practical example of combined loading is the crankshaft of an internal combustion engine (IC engine). The crankshaft of the IC engine is under high rpm, which is caused due to the torsional forces. Due to the presence of piston, counterbalances, and internal imbalances, the crankshaft experiences lateral forces and due to the rise in temperature, the crankshaft undergoes thermal expansion, which pulls the crankshaft along the axial direction and lateral direction. The presence of unbalanced loads along the periphery of the crankshaft also induces a bending moment.

Question

Q2: 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.
Determine the required diameter of the rod for a
factor of safety 2. Neglect any stress
concentration and column effect. Assume the
following
values:
Ultimate strength = 550 MPa
%3D
Yield strength = 470 MPa
Size factor = 0.85
Surface finish factor = 0.89
Correction factors = 1.0 for bending = 0.7 for axial
%3D
load
The endurance limit in reversed bending may be
taken as one-half the ultimate strength.

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