If Hooke’s Law is defined by the proportionality of stress and strain, at what point in the graph Hooke’s Law not obeyed (look at points a, b, c, and d)? Does it mean if Hooke’s Law is not obeyed deformation on the material is irreversible? Explain

Elements Of Electromagnetics
7th Edition
ISBN:9780190698614
Author:Sadiku, Matthew N. O.
Publisher:Sadiku, Matthew N. O.
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If Hooke’s Law is defined by the proportionality of stress and strain, at what point in the graph Hooke’s Law not obeyed (look at points a, b, c, and d)? Does it mean if Hooke’s Law is not obeyed deformation on the material is irreversible? Explain.

Proportional
limit
Elastic
behavior
Stress
Elastic limit or yield point
Plastic
deformation
Plastic
behavior
Permanent
set
Strain
b
0 <1%
d
Fracture
point
30%
Transcribed Image Text:Proportional limit Elastic behavior Stress Elastic limit or yield point Plastic deformation Plastic behavior Permanent set Strain b 0 <1% d Fracture point 30%
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