Question about elastic limit and yield point

  • Thread starter songoku
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  • #1
songoku
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Homework Statement:
This is not homework

I want to ask about the difference between elastic limit and yield point. Please see below
Relevant Equations:
None
1647571156449.png


Point B is elastic limit and point C is yield point.

From this link: https://en.m.wikipedia.org/wiki/Yield_(engineering)#Definition

The definition given is:

1647571343367.png


Both seems to refer to same definition, it is the point where the elastic deformation ends and plastic deformation begins. But from the graph, the points are different.

And also from this link: https://physics.stackexchange.com/questions/509742/permanent-set-point-vs-elastic-limit

There is graph:
1647571490630.png


In this graph, elastic limit and yield point are one point.

My questions:
Is point of elastic limit the same as yield point?

If no, what is the difference between those two points? And what deformation happens between elastic limit and yield point, is it elastic deformation or plastic deformation?

Thanks
 

Answers and Replies

  • #2
Lnewqban
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Timoshenko.jpg
Timoshenko 2.jpg

Timoshenko 3.jpg


 
Last edited:
  • #3
songoku
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Thank you very much Lnewqban
 

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