Hooke's law and elastic deformation

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Homework Help Overview

The discussion revolves around Hooke's law and the concepts of elastic and plastic deformation in springs. Participants are examining the graphical representation of the deformation of two springs, A and C, with a focus on how to depict spring C's behavior following the elastic deformation of spring A.

Discussion Character

  • Exploratory, Conceptual clarification, Problem interpretation

Approaches and Questions Raised

  • Participants are attempting to understand how to graphically represent the deformation of spring C, particularly in relation to spring A. There is discussion about the characteristics of elastic versus plastic deformation and how these should be reflected in the graph.

Discussion Status

Some participants have offered initial ideas about how to approach the graph for spring C, suggesting that it should start from the end of spring A's line. However, there is still uncertainty about the exact shape of the line representing spring C's deformation, indicating that multiple interpretations are being explored.

Contextual Notes

It is noted that all three springs are identical, which may influence the graphical representation and the assumptions made about their original lengths and deformation behavior.

ravsterphysics
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spring1.JPG

spring2.JPG



The Attempt at a Solution


[/B]
I know that spring A shows elastic deformation since it returned to its original shape once the stress removed and spring c shows plastic deformation and has been permanently extended so it won't return to its original shape.

BUT, I'm struggling to complete the graph for spring C especially since they want it to continue from where the line of spring A ends...Any ideas?
 
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ravsterphysics said:
View attachment 110628
View attachment 110629


The Attempt at a Solution


[/B]
I know that spring A shows elastic deformation since it returned to its original shape once the stress removed and spring c shows plastic deformation and has been permanently extended so it won't return to its original shape.

BUT, I'm struggling to complete the graph for spring C especially since they want it to continue from where the line of spring A ends...Any ideas?
What are your ideas on how it looks?
 
Chestermiller said:
What are your ideas on how it looks?

i would have started by drawing a line above the current line since the original length for C is obviously longer than A but after that I'm not sure, but since it has been deformed plastically and permanently I guess I could draw a line curve showing this?
 
ravsterphysics said:
i would have started by drawing a line above the current line since the original length for C is obviously longer than A but after that I'm not sure, but since it has been deformed plastically and permanently I guess I could draw a line curve showing this?
The 3 springs are identical, so the line for spring C must start out superimposed on the line for spring A.
 
Last edited:

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