Stress (MPa) Consider the brass alloy for which the stress-strain behavior is shown in the Animated Figure 7.12. A cylindrical specimen of this material 9.9mm (0.3898 in.) in diameter and 98.8mm (3.890 in.) long is pulled in tension with a force of 9780N(2199lb). If it is known that this alloy has a value for Poisson's ratio of 0.35, compute (a) the specimen elongation, (b) the reduction in specimen diameter. Note: because the diameter decreases, enter a minus sign in your answer. 500 400 Tensile strength 450 MPa (65,000 psi) Strain =0 Stress 0 MPA Stress = 0 psi 70 Strain =0 Stress 0 MPA 60 60 Stress =0 psi 103 psi 50 50 MPa 40 300 200 30 $200 40 30 30 20- 100 20 10 20 100 0 0 10 0 D 0.10 0.20 0.30 0.40 Strain Yield strength 250 MPa (36,000 psi) Stress (10 psi)

Stress (MPa) Consider the brass alloy for which the stress-strain behavior is shown in the Animated Figure 7.12. A cylindrical specimen of this material 9.9mm (0.3898 in.) in diameter and 98.8mm (3.890 in.) long is pulled in tension with a force of 9780N(2199lb). If it is known that this alloy has a value for Poisson's ratio of 0.35, compute (a) the specimen elongation, (b) the reduction in specimen diameter. Note: because the diameter decreases, enter a minus sign in your answer. 500 400 Tensile strength 450 MPa (65,000 psi) Strain =0 Stress 0 MPA Stress = 0 psi 70 Strain =0 Stress 0 MPA 60 60 Stress =0 psi 103 psi 50 50 MPa 40 300 200 30 $200 40 30 30 20- 100 20 10 20 100 0 0 10 0 D 0.10 0.20 0.30 0.40 Strain Yield strength 250 MPa (36,000 psi) Stress (10 psi)

Elements Of Electromagnetics

7th Edition

ISBN:9780190698614

Author:Sadiku, Matthew N. O.

Publisher:Sadiku, Matthew N. O.

ChapterMA: Math Assessment

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Concept explainers

Strain energy

The term strain indicates the variation in an object's length, area, and volume when the object is subjected to an external force. The external force may be of normal, shear, moment, torque, etc. The strain in an object depends on the types of external force and cross-section of the object. Mathematically, the evaluation of strain can be obtained with the help of elastic constants.

Question

Stress (MPa)
500
400
Consider the brass alloy for which the stress-strain
behavior is shown in the Animated Figure 7.12. A
cylindrical specimen of this material 9.9mm (0.3898 in.)
in diameter and 98.8mm (3.890 in.) long is pulled in
tension with a force of 9780N(2199/b). If it is known
that this alloy has a value for Poisson's ratio of 0.35,
compute (a) the specimen elongation, (b) the reduction
in specimen diameter. Note: because the diameter
decreases, enter a minus sign in your answer.
Tensile strength
450 MPa (65,000 psi),
Strain =0
Stress = 0 MPA
Stress =0 psi
70
Strain = 0
Stress
0 MPA
60
Stress = 0 psi
103 psi
50
40
MPa
Yield strength
300
250 MPa (36,000 psi)
40
30
200
200
20
100
10
100
0
0
T
10
P
0.10
0.20
Strain
10.065
0
0.30
0.40
30
20
10
Stress (10 psi)

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