
Elements Of Electromagnetics
7th Edition
ISBN: 9780190698614
Author: Sadiku, Matthew N. O.
Publisher: Oxford University Press
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Transcribed Image Text:From the stress-strain data for poly(methyl methacrylate) shown in figure below, determine the modulus of elasticity in the elastic
linear region and the tensile strength at 40 °C (104 °F).
Stress (MPa)
80
70
60
30
20
10
4°C (40°F)
,20°C (68°F)
30°C (86°F)
.40°C (104°F)
0.1
Strain
50°C (122°F)
60°C (140°F)
0.2
To 1.30
The modulus of elasticity is 2.3 GPa and the tensile strength is 49 MPa
O The modulus of elasticity is 38 MPa and the tensile strength is 3.3 GPa
The modulus of elasticity is 1.2 GPa and the tensile strength is 52 MPa
The modulus of elasticity is 1.2 GPa and the tensile strength is 38 MPa
T
12
10
8
2
0.3
Stress (10³ psi)
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