Answered: obtained from the test: i. Diameter of…

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 mild steel bar went through a tensile test conducted at the University of San Carlos
Mechanical Engineering Laboratory. The following data was obtained from the test:
i. Diameter of the steel bar = 30 mm
ii. Gauge length of the bar = 200 mm
iii. Load at the elastic limit = 250 kN
iv. Extension at a load of 150 kN = 0.21 mm
v. Maximum load = 380 kN
vi. Total extension = 60 mm
vii. Diameter of the rod at the failure = 22.5 mm
Determine the Young’s modulus, the stress at the elastic limit, the percentage elongation,
and the percentage decrease in area.

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