Condition #1:A structural support for a machine is subjected to a static compression load of 20 kN. The supportmanufactured from a circular rod made from SAE 1040 Hot Rolled steel. Specify suitable diameter forthe cross section of the rod based on the basic size. Steel data are available in Table A-10 from thetextbook.isCondition #2:The same structural support of the basic size determined in Condition 1 is subjected to a tensile load of15 kN that is repeated several thousand times over the life of the machine. This load is not an addition tothe 20 kN. Specify a suitable steel that is suitable to this application based on the basic size determined inCondition #1. Loading of Condition #1 does not apply here.Condition #3:The same structural support from Condition 2 is heated from room temperature of 25°C. The support isplaced inside a frame on both ends. There is a total clearance of 0.2 mm between the support and itsframe. Initial length of the rod is 200 mm. Specify the maximum temperature that the support can beheated to without exerting any stress to the frame. Ultimate strength, s,Yield strength, s,PercentMaterial SAE no.ConditionksiMPaksiMPaelongation36434864393576575296331Annealed102010204485173620Hot rolled1020Cold drawn441AnnealedHot rolledCold drawn759097517621669516035241456530251610401040104082192224641WQT 700WQT 900WQT 1100WQT 130012711810793901040876104081462155243410407388010408760063323722554141129103701080Annealed89614OQT 700OQT 900OQT 1100OQT 130013031234100097288971048312131718917910801080108014510801178072335226AnnealedCold drawn60077251951141871465511861141112172129971331οQT 700OQT 900OQT 1100OQT 1300193146114110078006488896691520114111411161141946846928Annealed604142665515931289101441404140414095231146211939031215212OQT 700OQT 900OQT 1100OQT 130017318714741401311841401188141016962372440238Annealed105276175160516016419.OQT 700OQT 900OQT I100OQT 13002631961491151813135110277935160179123412132103516091017516071023'Other propertics are approximately the same for all carbon and alloy steels:Modulus of elasticity in tension = 30 000 000 psi (207 GPa).Modulus of clasticity in shear = 11 500 00X0 psi (80 GPa).Density 0.283 lb /in. (7680 kg/m').OỌT means oil quenched and tempered. WQT means water quenched and tempered.|台

Answered: A structural support for a manufactured…

A structural support for a manufactured from a circ the cross section of the rc textbook. Condition #2: The same structural supp

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

Free Body Diagram

The system of forces acting on a body tends to either rotate it or make the body undergo motion. In general, when an external agent exerts a force on a body, the body undergoes translational motion and rotational motion. The body has six degrees of freedom under the influence of that force. Here, three degrees of freedom are from the translational motion while the other three are from the rotation motion. However, sometimes the bodies are not allowed to undergo any motion and are fixed, under such conditions the body is said to be constrained.

Question

Condition #1:
A structural support for a machine is subjected to a static compression load of 20 kN. The support
manufactured from a circular rod made from SAE 1040 Hot Rolled steel. Specify suitable diameter for
the cross section of the rod based on the basic size. Steel data are available in Table A-10 from the
textbook.
is
Condition #2:
The same structural support of the basic size determined in Condition 1 is subjected to a tensile load of
15 kN that is repeated several thousand times over the life of the machine. This load is not an addition to
the 20 kN. Specify a suitable steel that is suitable to this application based on the basic size determined in
Condition #1. Loading of Condition #1 does not apply here.
Condition #3:
The same structural support from Condition 2 is heated from room temperature of 25°C. The support is
placed inside a frame on both ends. There is a total clearance of 0.2 mm between the support and its
frame. Initial length of the rod is 200 mm. Specify the maximum temperature that the support can be
heated to without exerting any stress to the frame.

Ultimate strength, s,
Yield strength, s,
Percent
Material SAE no.
Condition
ksi
MPa
ksi
MPa
elongation
36
43
48
64
393
57
65
75
296
331
Annealed
1020
1020
448
517
36
20
Hot rolled
1020
Cold drawn
441
Annealed
Hot rolled
Cold drawn
75
90
97
517
621
669
51
60
352
414
565
30
25
16
1040
1040
1040
82
19
22
24
641
WQT 700
WQT 900
WQT 1100
WQT 1300
127
118
107
93
90
1040
876
1040
814
621
552
434
1040
738
80
1040
87
600
63
32
372
25
54
141
129
103
70
1080
Annealed
89
614
OQT 700
OQT 900
OQT 1100
OQT 1300
1303
1234
1000
972
889
710
483
12
13
17
189
179
1080
1080
1080
145
1080
117
807
23
352
26
Annealed
Cold drawn
600
772
51
95
1141
87
14
655
1186
1141
112
172
129
97
1331
οQT 700
OQT 900
OQT 1100
OQT 1300
193
146
1141
1007
800
648
889
669
15
20
1141
1141
116
1141
94
68
469
28
Annealed
60
414
26
655
1593
1289
1014
4140
4140
4140
95
231
1462
1193
903
12
15
212
OQT 700
OQT 900
OQT 1100
OQT 1300
173
187
147
4140
131
18
4140
118
814
101
696
23
724
40
238
Annealed
105
276
17
5160
5160
1641
9.
OQT 700
OQT 900
OQT I100
OQT 1300
263
196
149
115
1813
1351
1027
793
5160
179
1234
12
132
103
5160
910
17
5160
710
23
'Other propertics are approximately the same for all carbon and alloy steels:
Modulus of elasticity in tension = 30 000 000 psi (207 GPa).
Modulus of clasticity in shear = 11 500 00X0 psi (80 GPa).
Density 0.283 lb /in. (7680 kg/m').
OỌT means oil quenched and tempered. WQT means water quenched and tempered.
|台

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