PROBLEM 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

Elements Of Electromagnetics
7th Edition
ISBN:9780190698614
Author:Sadiku, Matthew N. O.
Publisher:Sadiku, Matthew N. O.
ChapterMA: Math Assessment
Section: Chapter Questions
Problem 1.1MA
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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 proportions limit, modulus of elasticity ( which is the slope of the in it 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 (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:PROBLEM 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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