For a number of points during a tension test on Man-Ten steel, engineering stress and strain data are given in Table. Also given are minimum diameters measured in the necked region in the latter portions of the test. The initial diameter was 6.32 mm. (a) Determine the Young’s modulus; (b) Determine the true stress and strain throughout; (c) Calculate the true plastic strain for the beyond yielding.

Elements Of Electromagnetics
7th Edition
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Author:Sadiku, Matthew N. O.
Publisher:Sadiku, Matthew N. O.
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    • For a number of points during a tension test on Man-Ten steel, engineering stress and strain data are given in Table. Also given are minimum diameters measured in the necked region in the latter portions of the test. The initial diameter was 6.32 mm. (a) Determine the Young’s modulus; (b) Determine the true stress and strain throughout; (c) Calculate the true plastic strain for the beyond yielding. 
Engr. Stress
a, MPa
Engr. Strain
Diameter
d, mm
6.32
125
0.0006
257
0.0012
359
0.0017
317
0.0035
333
0.0070
357
0.0100
397
0.0170
458
0.0300
507
0.0500
541
0.0790
5.99
576
5.72
558
5.33
531
5.08
476
4.45
379
3.50
(Final point is fracture.)
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Transcribed Image Text:Engr. Stress a, MPa Engr. Strain Diameter d, mm 6.32 125 0.0006 257 0.0012 359 0.0017 317 0.0035 333 0.0070 357 0.0100 397 0.0170 458 0.0300 507 0.0500 541 0.0790 5.99 576 5.72 558 5.33 531 5.08 476 4.45 379 3.50 (Final point is fracture.) | | | | | || | |
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