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 1, Problem 14P
Determinations of the ultimate tensile strength Swt of stainless-steel sheet (17-7PH, condition TH 1050), in sizes from 0.016 to 0.062 in. in 197 tests combined into seven classes were
| Swt (kpsi) | | 174 | 182 | 190 | 198 | 206 | 214 | 222 |
| f | 6 | 9 | 44 | 67 | 53 | 12 | 6 |
where Swt is the class midpoint and f is the class frequency. Estimate the mean and standard deviation.
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The following data was obtained from a tensile test on
Load (kN)
16
32
56
72
95
110
132
142
140
135
Extension (mm)
0.2
0.4
0.7
0.9
1.5
2.5
5.0
8,5
10.0
12.0
a specimen of 10mm diameter and gauge length 60mm.
Using the graph paper supplied, plot the load-extension
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(1) The tensile strength
(2) 0.1% Proof Stress
(3) Young's Modulus for the specimen
Asiacell 4,ll
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D19:17
سؤال الواجب.docx
Problem :-
The following data was obtained tensile test on a specimen of 6 mm diameter and
gauge length Lo=30 mm:
load(KN)
0 40
80
95
90
135
150.2 145 130 120
elongation(mm) 0 0.022 0.13 0.25 0.55 2.01 3.88
4.12 5.22 6
Plot engineering and True (stress-strain) curves, then determine the (oy, ɛy), (ou,
ɛu), (of, , ef), ductility , modulus of elasticity .
Then select on the drawing (strain hardening (n)), (Necking), (uniform plastic
region and non-uniform plastic region) and (elastic & plastic) region)?
A tensile test was performed to find the stress-strain curve of a metal sample.Here are the results
provided by the tensile testing machine.Suppose the results are free of errors.
Elongation, 0
AL (cm)
Applied
force , F(N)
4.086
5.448
2.724
6.81
1.362
55571.1
61710.1
52930.5
68018.1
39498.3
Additional information :
Lo : the length of the extensometer
Lo = 5.42 cm
A= 5.342
Questions :
a) At. Using the 0.2% yield strength method, calculate the tensile strength of the metal sample.
b) Find the modulus of resilience of the material under test.
c) Calculate the allowable load for an object made of this metal using the parameters following:
* Maximum stress: elastic limit
Cross section: 10 mm2
Safety factor (or margin): 7
Calculate numerically with a minimum of four decimal places.
Chapter 1 Solutions
Shigley's Mechanical Engineering Design (McGraw-Hill Series in Mechanical Engineering)
Ch. 1 - Select a mechanical component from Part 3 of this...Ch. 1 - Select a mechanical component from Part 3 of this...Ch. 1 - Select an organization listed in Sec. 16, go to...Ch. 1 - Go to the Internet and connect to the NSPE website...Ch. 1 - Go to the Internet and connect to the NSPE website...Ch. 1 - Estimate how many times more expensive it is to...Ch. 1 - The costs to manufacture a part using methods A...Ch. 1 - A cylindrical part of diameter d is loaded by an...Ch. 1 - When one knows the true values x1 and x2 and has...Ch. 1 - Use the true values x1 = 7 and x2 = 8 (a)...
Ch. 1 - A solid circular rod of diameter d undergoes a...Ch. 1 - A fatigue test is performed on rotating beam...Ch. 1 - Determinations of the ultimate tensile strength...Ch. 1 - The lives of parts are often expressed as the...Ch. 1 - The tensile 0.2 percent offset yield strength of...Ch. 1 - A mechanical system comprises three subsystems in...Ch. 1 - From See. 3-12, the maximum shear stress in a...Ch. 1 - A round cold-drawn 1045 steel rod has a mean...Ch. 1 - A beam subjected to axial loading will experience...Ch. 1 - Three blocks A, B, and C and a grooved block D...Ch. 1 - The volume of a rectangular parallelepiped is...Ch. 1 - A pivot in a linkage has a pin in the figure whose...Ch. 1 - A circular cross section O ring has the dimensions...Ch. 1 - Prob. 25PCh. 1 - Prob. 26PCh. 1 - Prob. 27PCh. 1 - Prob. 28PCh. 1 - Convert the following to appropriate ips units:...Ch. 1 - Convert the following to appropriate SI units: (a)...Ch. 1 - Generally, final design results are rounded to or...Ch. 1 - Repeal Prob. 1-31 for the following: (a) = F/wt,...Ch. 1 - Repeat Prob. 131 for: (a) = F/A, where A = d2/4, F...
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