For many materials, the stress-strain curve can be written by the Ramberg-Osgood equation presented below, where the parameters E, k and n are obtained from the stress-strain diagram of a given material. Considering the s-e diagram shown in the figure for a certain material, determine E, k and n and obtain the formula for the curve.

Elements Of Electromagnetics
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Author:Sadiku, Matthew N. O.
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For many materials, the stress-strain curve can be written by the Ramberg-Osgood equation presented below, where the parameters E, k and n are obtained from the stress-strain diagram of a given material. Considering the s-e diagram shown in the figure for a certain material, determine E, k and n and obtain the formula for the curve.

+ ko"
420
280
140
0,1
0.2
0.3
0.4
0.5
Tensão o (MPa)
||
Transcribed Image Text:+ ko" 420 280 140 0,1 0.2 0.3 0.4 0.5 Tensão o (MPa) ||
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