Answered: PROBLEM 1.5-6 Stress (MPa) Strain 8.0…

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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Question

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

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