Shigley's Mechanical Engineering Design (McGraw-Hill Series in Mechanical Engineering)
10th Edition
ISBN: 9780073398204
Author: Richard G Budynas, Keith J Nisbett
Publisher: McGraw-Hill Education
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Chapter 2, Problem 19P
Repeat Prob. 2-18 for the commonly used alloy steels. AISI 4130 and 4340.
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Students have asked these similar questions
A structural support for a machine is subjected to a static compression load of 20 kN.
The support is 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.
A-10 Typical propertics of carbon and alloy steels.
Ultimate strengih, s.
Yield strength,
Percent
Material SAE no.
Condition
ksi
MPa:
ksi
MP
clongation
Anncaled
Hot rolled
Cold drawn
57
65
75
393
448
517
43
48
64
296
331
441
36
36
20
1020
1020
1020
1040
Annealed
75
$17
352
30
Hot
1010
565
641
621
s52
16
Cold drawn
WQT 700
WQT 900
WQT 1100
WQT 1300
1040
876
814.
19
22
127.
1040
1040
1040
1040
107
87
600
63
434
32
1080
1080
1080
1080
Annealed
OQT 700.
OQT 900
OQT 100
OQT 1300
89
189
179
145
117
614
1303
1234
1000
807
54
141
129
372
972
889
P10
13
17
103
70
483
1080
352
655
T186
中6
14
Annealed
Cold drawn
OQT 700
OQT 900
OOT 1100
OQT 1300
87
112
193
146
116
94
600
772
1331
1007
800…
Two steels are being considered for manufacture of as-forged connecting rods subjected to bending loads. One is AISI 4340 Cr-Mo-Ni steel capable of being heat-treated to a tensile strength of 260 ksi. The other is a plain carbon steel AISI 1040 with a ultimate strength of 113 ksi. Each rod is to have a size giving an equivalent diameter of 0.75 in. Determine the endurance limit for each material. Is there any advantage to using the alloy steel for this fatigue application?
Two steels are being considered for manufacture of as-forged connecting rods. One is AISI 4340 Cr-Mo-Ni steel capable
of being heat-treated to a tensile strength of 260 kpsi. The other is a plain carbon steel AISI 1040 with an attainable Sut of
113 kpsi. If each rod is to have a size giving an equivalent diameter d of 0.75 in, is there any advantage to using the alloy
steel for this fatigue application?
Chapter 2 Solutions
Shigley's Mechanical Engineering Design (McGraw-Hill Series in Mechanical Engineering)
Ch. 2 - Determine the tensile and yield strengths for the...Ch. 2 - Assume you were specifying an AISI 1060 steel for...Ch. 2 - Determine the yield strength-to-density ratios...Ch. 2 - Determine the stiffness-to-weight density ratios...Ch. 2 - Poissons ratio v is a material property and is the...Ch. 2 - A part made from annealed AISI 1018 steel...Ch. 2 - Prob. 10PCh. 2 - Repeat Prob. 2-9 for a part made from 2024-T4...Ch. 2 - A steel member has a Brinell of HB = 215. Estimate...Ch. 2 - A gray cast iron part has a Brinell hardness...
Ch. 2 - Prob. 14PCh. 2 - Brinell hardness tests were made on a random...Ch. 2 - Prob. 16PCh. 2 - Prob. 18PCh. 2 - Repeat Prob. 2-18 for the commonly used alloy...Ch. 2 - 2-21 to 2-23 A 1-in-diameter rod. 3 ft long, of...Ch. 2 - Prob. 22PCh. 2 - Prob. 23PCh. 2 - Consider a rod transmitting a tensile force. The...Ch. 2 - Repeat Prob. 2-26, except that the design...Ch. 2 - Prob. 28PCh. 2 - Prob. 29PCh. 2 - Prob. 30PCh. 2 - For an axially loaded rod. prove that = 1 for the...Ch. 2 - Prob. 32PCh. 2 - Prob. 33PCh. 2 - Prob. 34P
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- Condition #1: A structural support for a machine is subjected to a static compression load of 20 kN. The 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. support is A-10 Typical properties of carbon and alloy stcels. Ultimate strength, s Yield strength, s, Percent Material SAE no. Condition ksi MPa ksi MPa elongation 1020 Annealed Hot rolled 57 393 43 296 36 1020 65 448 48 331 441 36 1020 Cold drawn 75 517 64 20 1040 Annealed Hot rolled Cold drawn 75 517 51 352 30 BO40 90 621 60 82 414 1040 97 669 565 16 1040 WQT 700 WQT 900 WQT 1100 WQT 1300 127 118 876 93 641 19 1040 814 90 621 1040 107 738 80 552 24 1040 87 600 63 434 32 1080 Annealed OQT 700 OQT 900 OQT 1100 OQT 1300 89 614 1303 1234 1080 54 372 25 189 179 145 117 141 129 972 889 710 1080 12 1O80 13 1000 103 70 17 23 1080 807 483 1141 Annealed 87 600 772 1141 51 352 26…arrow_forwardA steel is to be selected from Appendix C-4a. Estimate Su and Sy from the given values of Brinell hardness for the selected steel.arrow_forwarda) Determine the minimum required thickness "t" for the element shown in the figure, if it will be manufactured in AISI 1060 HR steel, which works at an operating temperature of 265 ° C, with a reliability of 90%. The applied load is alternating and a safety factor of 1.7 is desired. I explained the reason for your answer.b) What is the critical point and why?arrow_forward
- - Determine the LRFD design strength, P, and the ASD allowable strength, P for each of the compression members shown. Use the AISC Specification and a steel with F, = 50 ksi, except for Problem 5-8, F, 46 ksi. 5-5. (Ans. 212 k LRFD; 141 k ASD) 5-6. 4. W10 x 60 18 ft 0 in W8 x 31 20 ft 0 in FIGURE P5-6 FIGURE P5-5 5-8. 5-7. (Ans. 678.4 k LRFD; 451.5 k ASD) SSH 6x 6 x 12 ft 0 in W12 X 65 22 ft O in Fy = 46 ksi FIGURE P5-8 FIGURE P5-7arrow_forwardCalculate Brinell Hardness for Hardened AW-6060 Aluminium if mean depression diameters (d)= 5.64mm with applied load of * ?3000kgfarrow_forwardThe round cross-sectional bar is cut from an AISI 1020 colddrawn steel with a diameter of 25 mm. The bar is loaded at its end with a completely reversed load Fmin = 5 kN, Fmax = -3 kN. Using a design factor of nd = 1.2, what will be the maximum length of the bar that prevents failure using Modified Goodman criteria? What length must be used if a more conservative criteria is used?arrow_forward
- Tensile and fully reversed loading fatigue tests were conducted for a certain steelalloy and revealed the tensile strength and endurance limit to be 1200 and 550 MPa,respectively. If a rod of this material supply were subjected to a static stress of 600MPa and fully-reversed oscillating stresses whose total range was 700 MPa. Assuming garber relationship will this rod fail by fatigue failurearrow_forwardEstimate the endurance strength of a 1.5-in-diameter rod of AISI 1040 steel having a machined finish and heat-treated to a tensile strength of 110 kpsi.arrow_forwardAn application requires ultimate tensile strength and yield strength ofa steel at 110 ksi and 91 ksi, respectively. Answer the following 4 questions: Can SAE 1040 steel be selected for this application? If “no” is the answer in Part I, the following Part II, III, and IV can beignored. If “yes” is the answer in Part I, which condition of SAE 1040 shouldbe selected? Why is that steel with the condition in part II selected? Is the selected steel brittle or ductile? and Why?arrow_forward
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