1.5-6) A specimen of a methacrylate plastic is tested in tension at room temperature (see figure), producing the stress-strain data listed in the accompanying table (see next page). Plot the stress-strain curve and determine the proportional limit, modulus of elasticity (which is the slope of the initial part of the stress-strain curve), and the yield stress at 0.2% offset. Is the material ductile or brittle? P PROBLEM 1.5-6

Elements Of Electromagnetics
7th Edition
ISBN:9780190698614
Author:Sadiku, Matthew N. O.
Publisher:Sadiku, Matthew N. O.
ChapterMA: Math Assessment
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1.5-6) A specimen of a methacrylate plastic is tested
in tension at room temperature (see figure), producing
the stress-strain data listed in the accompanying table
(see next page).
Plot the stress-strain curve and determine the
proportional limit, modulus of elasticity (which is the
slope of the initial part of the stress-strain curve), and
the yield stress at 0.2% offset. Is the material ductile
or brittle?
PROBLEM 1.5-6
Transcribed Image Text:1.5-6) A specimen of a methacrylate plastic is tested in tension at room temperature (see figure), producing the stress-strain data listed in the accompanying table (see next page). Plot the stress-strain curve and determine the proportional limit, modulus of elasticity (which is the slope of the initial part of the stress-strain curve), and the yield stress at 0.2% offset. Is the material ductile or brittle? PROBLEM 1.5-6
STRESS-STRAIN DATA FOR PROB. 1.5-6
Stress (MPa)
Strain
8.0
0.0032
17.5
0.0073
25.6
0.0111
31.1
0.0129
39.8
0.0163
44.0
0.0184
48.2
0.0209
53.9
0.0260
58.1
0.0331
60.2
0.0384
62.0
0.0429
62.1
Fracture
Transcribed Image Text:STRESS-STRAIN DATA FOR PROB. 1.5-6 Stress (MPa) Strain 8.0 0.0032 17.5 0.0073 25.6 0.0111 31.1 0.0129 39.8 0.0163 44.0 0.0184 48.2 0.0209 53.9 0.0260 58.1 0.0331 60.2 0.0384 62.0 0.0429 62.1 Fracture
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