For the given load, find the value of the stress amplitude and stress ratio respectively, A MPa25020015010050Time(a) 100 MPa and 5(b) 250 MPa and 5(c) 100 MPa and 0.20(d) 250 MPa and 0.20

Given: Stress-Time graph of fluctuating fatigue load

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Engineering

Mechanical Engineering

or the given load, find the value of the stress amplitude and stress ratio respective

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

Work and Heat Transfer

It is generally related to thermal engineering which tells about the use, creation, conversion and transfer of heat energy between the systems. It is also considered that to transfer heat from one source to another, transfer of masses is also required. There are various mechanisms by which, transfer of heat takes place i.e. thermal conduction, convection, radiation or by change of phase. All these mechanisms have their own specific features which sometimes occur simultaneously within the same system.

Question

For the given load, find the value of the stress amplitude and stress ratio respectively,

A MPa
250
200
150
100
50
Time
(a) 100 MPa and 5
(b) 250 MPa and 5
(c) 100 MPa and 0.20
(d) 250 MPa and 0.20

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ᴀ ꜱᴛᴇᴇʟ ʜᴀꜱ ᴀ ʙʜɴ = 300. ᴡʜᴀᴛ ɪꜱ ɪᴛꜱ ᴀᴘᴘʀᴏxɪᴍᴀᴛᴇ ᴜʟᴛɪᴍᴀᴛᴇ ꜱᴛʀᴇɴɢᴛʜ ɪɴ ᴋꜱɪ? Option:a.300 ᴋꜱɪ b.200 ᴋꜱɪ c.75 ᴋꜱɪd. d.150 ᴋꜱɪ
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ᴀ ꜱᴛᴇᴇʟ ʜᴀꜱ ᴀ ʙʜɴ = 500. ᴡʜᴀᴛ ɪꜱ ɪᴛꜱ ᴀᴘᴘʀᴏxɪᴍᴀᴛᴇ ᴜʟᴛɪᴍᴀᴛᴇ ꜱᴛʀᴇɴɢᴛʜ ɪɴ ᴍᴘᴀ?a.250000b. 2225c.1725d.250
P= 2.5 R=4050 C=1
Would the time not be equal to 1500sec ? 25minutes x 60 = 1500sec
C= 2 P = 5 R = 5100
CHOICES: a. 2.81 m/s^2 b. 0 c. 1.25 m/s^2 d. 1.95 m/s^2
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