EBK MANUFACTURING PROCESSES FOR ENGINEE
6th Edition
ISBN: 9780134425115
Author: Schmid
Publisher: YUZU
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Question
Chapter 2, Problem 2.62P
(a)
To determine
The true strain at which the necking will begin.
(b)
To determine
To show the engineering material will exhibit this behavior.
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What strain will be produced by a stress of 80 x 106 N/m2, for a given modulus of elasticity 200GPa.
a.
0.0008
b.
0.0004
c.
0.004
d.
0.002
To determine the nominal or engineering stress and strain experienced by a specimen of a material while it is subjected to a tension test, and to be able to read important values from a conventional stress-strain diagram obtained from the test.A tension test is being conducted on a steel-rod specimen with a gauge length of L0=2 in and initial diameter of d0=0.5 in. Data were collected to form the conventional stress-strain diagram as shown. From the diagram, f = 73.0 ksi , e = 101.0 ksi g=83.0ksi, and h=0.15in/in
Part A - Nominal or engineering strain in the rod
Assuming that the strain remains constant throughout the region between the gauge points, determine the nominal strain ε experienced by the rod if it is elongated to L = 2.5 in .
Express the nominal strain in inches per inch to three significant figures.
Part B - Nominal or engineering stress in the specimen
Assuming that the stress is constant over the cross-sectional area and if the tension force used is P = 8.0 kips ,…
A tensile bar is stressed to 250 N/mm2 which is beyond its elastic limit. At this stage the strain produced in the bar is observed to be 0.0014. if the modulus of elasticity of the material of the bar is 205000 N/mm2 then the elastic component of the strain is very close toa. 0.0004b. 0.0002c. 0.0001d. 0.00005 PLS EXPLAIN YOUR ANSWER THOROUGHLY
Chapter 2 Solutions
EBK MANUFACTURING PROCESSES FOR ENGINEE
Ch. 2 - Prob. 2.1QCh. 2 - Prob. 2.2QCh. 2 - Prob. 2.3QCh. 2 - Prob. 2.4QCh. 2 - Prob. 2.5QCh. 2 - Prob. 2.6QCh. 2 - Prob. 2.7QCh. 2 - Prob. 2.8QCh. 2 - Prob. 2.9QCh. 2 - Prob. 2.10Q
Ch. 2 - Prob. 2.11QCh. 2 - Prob. 2.12QCh. 2 - Prob. 2.13QCh. 2 - Prob. 2.14QCh. 2 - Prob. 2.15QCh. 2 - Prob. 2.16QCh. 2 - Prob. 2.17QCh. 2 - Prob. 2.18QCh. 2 - Prob. 2.19QCh. 2 - Prob. 2.20QCh. 2 - Prob. 2.21QCh. 2 - Prob. 2.22QCh. 2 - Prob. 2.23QCh. 2 - Prob. 2.24QCh. 2 - Prob. 2.25QCh. 2 - Prob. 2.26QCh. 2 - Prob. 2.27QCh. 2 - Prob. 2.28QCh. 2 - Prob. 2.29QCh. 2 - Prob. 2.30QCh. 2 - Prob. 2.31QCh. 2 - Prob. 2.32QCh. 2 - Prob. 2.33QCh. 2 - Prob. 2.34QCh. 2 - Prob. 2.35QCh. 2 - Prob. 2.36QCh. 2 - Prob. 2.37QCh. 2 - Prob. 2.38QCh. 2 - Prob. 2.39QCh. 2 - Prob. 2.40QCh. 2 - Prob. 2.41QCh. 2 - Prob. 2.42QCh. 2 - Prob. 2.43QCh. 2 - Prob. 2.44QCh. 2 - Prob. 2.45QCh. 2 - Prob. 2.46QCh. 2 - Prob. 2.47QCh. 2 - Prob. 2.48QCh. 2 - Prob. 2.49PCh. 2 - Prob. 2.50PCh. 2 - Prob. 2.51PCh. 2 - Prob. 2.52PCh. 2 - Prob. 2.53PCh. 2 - Prob. 2.54PCh. 2 - Prob. 2.55PCh. 2 - Prob. 2.56PCh. 2 - Prob. 2.57PCh. 2 - Prob. 2.58PCh. 2 - Prob. 2.59PCh. 2 - Prob. 2.60PCh. 2 - Prob. 2.61PCh. 2 - Prob. 2.62PCh. 2 - Prob. 2.63PCh. 2 - Prob. 2.64PCh. 2 - Prob. 2.65PCh. 2 - Prob. 2.66PCh. 2 - Prob. 2.67PCh. 2 - Prob. 2.68PCh. 2 - Prob. 2.69PCh. 2 - Prob. 2.70PCh. 2 - Prob. 2.71PCh. 2 - Prob. 2.72PCh. 2 - Prob. 2.73PCh. 2 - Prob. 2.74PCh. 2 - Prob. 2.75PCh. 2 - Prob. 2.76PCh. 2 - Prob. 2.78PCh. 2 - Prob. 2.79PCh. 2 - Prob. 2.80PCh. 2 - Prob. 2.81PCh. 2 - Prob. 2.82PCh. 2 - Prob. 2.83PCh. 2 - Prob. 2.84PCh. 2 - Prob. 2.85PCh. 2 - Prob. 2.86PCh. 2 - Prob. 2.87PCh. 2 - Prob. 2.88PCh. 2 - Prob. 2.89PCh. 2 - Prob. 2.90PCh. 2 - Prob. 2.91PCh. 2 - Prob. 2.92PCh. 2 - Prob. 2.93PCh. 2 - Prob. 2.94PCh. 2 - Prob. 2.95PCh. 2 - Prob. 2.96PCh. 2 - Prob. 2.97PCh. 2 - Prob. 2.98PCh. 2 - Prob. 2.99PCh. 2 - Prob. 2.100PCh. 2 - Prob. 2.101P
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1.From the tensile stress-strain behavior for the brass specimen shown in below, determine the following: (a) The modulus of elasticity, (b) The yield strength at a strain offset of 0.002, (c) The maximum load that can be sustained by a cylinderical specimen having an original diameter of 12.8 mm, (d) The change in length of a specimen originally 250 mm long that is subjected to a tensile stress of 345 MPa.
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A 200 meter cable is suspended vertically. At any point along the cable, the strain is proportional to the length of the cable below the point. If the strain at the top of the cable is 0.001, determine the total elongation of the cable.
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Engineering stress and strain are calculated using the actual cross-sectional area and length of the specimen. True or false?
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For a given material, the ratio of lateral strain to linear strain is observed as 0.2 when axially loaded. What will be Poisson’s ratio of that material? Take diameter of the specimen is 50mm and Length=1m.
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To determine the nominal or engineering stress and strain experienced by a specimen of a material while it is subjected to a tension test, and to be able to read important values from a conventional stress-strain diagram obtained from the test.
A tension test is being conducted on a steel-rod specimen with a gauge length of L0=50
mm and initial diameter of d0=13 mm. Data were collected to form the conventional stress-strain diagram as shown. From the diagram, f = 506 MPa , e = 689 MPa , g = 585 MPa , and h = 0.146 mm/mm .
A) Assuming that the strain remains constant throughout the region between the gauge points, determine the nominal strain ε experienced by the rod if it is elongated to L = 53.0 mm .
B) Assuming that the stress is constant over the cross-sectional area and if the tension force used is P = 16.0 kN , find the nominal stress experienced by the rod.
C)Determine the force P needed to reach the ultimate stress in the steel-rod specimen.
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Part B - Average normal strain in cable S
Determine the average normal strain in cable S due to the load of the tractor trailer and consequent drop of the roadway.
Express your answer in percent strain to three significant figures.
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2.Show that volumetric strain in a bar is equal to the sum of strains in three mutually perpendicular directions.
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For a linear elastic isotropic material, prove that a state of plane stress result in a strain field description that satisfies the strain compatibility equations.
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a) A thin strip of rubber-like material has an unstretched length of 345 mm.i. If it is stretched around a pipe having an outer diameter of 112 mm, determine the average normal strain in the strip, assuming linear elastic behaviour. (3 marks)ii. A steel wire of diameter dwire = 1.5 mm also has an initial length of 345 mm. The Young’s Modulus of the steel material is 190 GPa and its yield strength is 275 MPa. What is the maximum pipe diameter that the wire can be stretched around without yielding and what is the magnitude of the tensile force in the wire for this elongation? Give your answers to two decimal places
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A specimen is originally 1.5 ft long, has a diameter of 0.7 in., and is subjected to a force 550 lb. When the force is increased to 1900 lb, the specimen elongates 0.9 in.
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Is the normal strain sometimes stated in terms of a ratio of length units?
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