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A specimen with cylindrical shape was subjected to tensile test. Please plot the stress vs. strain curve for the specimen and calculate Young's modulus. Diameter of test specimen, do = 11.600 mm Length of test specimen, lo = 50.500 mm

A specimen with cylindrical shape was subjected to tensile test. Please plot the stress vs. strain curve for the specimen and calculate Young's modulus. Diameter of test specimen, do = 11.600 mm Length of test specimen, lo = 50.500 mm

Elements Of Electromagnetics
Elements Of Electromagnetics
7th Edition
ISBN:9780190698614
Author:Sadiku, Matthew N. O.
Publisher:Sadiku, Matthew N. O.
ChapterMA: Math Assessment
Section: Chapter Questions
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A specimen with cylindrical shape was subjected to tensile test. Please plot the stress vs. strain curve for the specimen and calculate Young's modulus. Diameter of test specimen, do = 11.600 mm Length of test specimen, lo = 50.500 mm Load vs. elongation data for the test specimen Load (N) Length (mm) 7.150 50.594 14.840 50.768 22.760 50.942 30.220 51.116 33.980 51.290 37.900 51.464 41.120 51.892 44.220 52.320 45.540 52.748 47.120 53.684 46.760 54.620 45.280 55.550 44.620 56.238 41.700 56.920 36.220 57.602
Transcribed Image Text:A specimen with cylindrical shape was subjected to tensile test. Please plot the stress vs. strain curve for the specimen and calculate Young's modulus. Diameter of test specimen, do = 11.600 mm Length of test specimen, lo = 50.500 mm Load vs. elongation data for the test specimen Load (N) Length (mm) 7.150 50.594 14.840 50.768 22.760 50.942 30.220 51.116 33.980 51.290 37.900 51.464 41.120 51.892 44.220 52.320 45.540 52.748 47.120 53.684 46.760 54.620 45.280 55.550 44.620 56.238 41.700 56.920 36.220 57.602
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When calculating the youth's modulus, don't we need to calculate from the slope? 

E = (0.285949012 - 0.067655044) / (0.01219802 - 0.001861386) 

Shouldn't it be this way? Or is it calculated based on a single point as you did?

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