b-the true stress (in MPa) and true strain at failure. do = 14mm Io=55mm de=10.5mm Iş=73.7mm %3D

Elements Of Electromagnetics
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Can you please answer question B, thank you

A metal bar do in diameter and lo gage length failed under an axial tensile load of F. The final diameter and
final length of the bar were measured as d; and I. Calculate,
a-the engineering stress (in MPa) and engineering strain at failure.
b-the true stress (in MPa) and true strain at failure.
do = 14mm
Io=55mm
dr=10.5mm
IF=73.7mm
F=60KN
Transcribed Image Text:A metal bar do in diameter and lo gage length failed under an axial tensile load of F. The final diameter and final length of the bar were measured as d; and I. Calculate, a-the engineering stress (in MPa) and engineering strain at failure. b-the true stress (in MPa) and true strain at failure. do = 14mm Io=55mm dr=10.5mm IF=73.7mm F=60KN
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