Engineering Why does this stress-strain diagram have two curves & x-axis scales?

AI Thread Summary
The discussion centers on a stress-strain diagram that features two curves with different x-axis scales, causing confusion among users. Participants express frustration over the lack of accompanying information, such as captions or descriptions, to clarify the graph's purpose. One user explains that the two curves represent the same data but are zoomed in at different scales, with one curve showing low range and the other high range. Another contributor notes that the lower curve is stretched horizontally, making its slope appear steeper than it actually is. Overall, the conversation highlights the need for clearer graphical representations in educational materials.
chrisbroward
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Homework Statement
& which curve goes with which scale? I'm a bit lost
Relevant Equations
stress-strain
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I do not understand why you are providing as little information as possible. The graph should have a caption and a description in the text (which should also be named).
 
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Frabjous said:
I do not understand why you are providing as little information as possible. The graph should have a caption and a description in the text (which should also be named).
Well... it doesn't
 
chrisbroward said:
Well... it doesn't
Why are you worried about a graph that has no information associated with it?
 
Frabjous said:
Why are you worried about a graph that has no information associated with it?
Lol what type of question is this?
If you're for real -- I was browsing the internet for hw solutions. Came across this problem. The question asks to find the modulus of toughness and resilience.

I'm figuring since the above one has actually shows the curve that i'm used to (yield point, fracture point, & yield utimate)
then the bottom curve should be some sort of Δdeformation.

But it doesn't specificy.
 
But y'know since i'm student i don't really know. I've only just come to ask people who know more than me. I could ask my tutor but it's Saturday.
 
There is one curve. It is shown in two parts, one is a zoom in on the first part of the scale. They share the same vertical axis.
Notice how one ends where the other begins, so you know which is low range, starting at zero, and which is the high range.
 
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Baluncore said:
There is one curve. It is shown in two parts, one is a zoom in on the first part of the scale. They share the same vertical axis.
Notice how one ends where the other begins, so you know which is low range, starting at zero, and which is the high range.
Oh okay! This makes a lot more sense thank you!
 
chrisbroward said:
But y'know since i'm student i don't really know. I've only just come to ask people who know more than me. I could ask my tutor but it's Saturday.
Please, see:
https://www.e-education.psu.edu/matse81/node/2105

Note that the lower curve is stretched to the right or horizontally only at a scale 80 times respect to the upper curve.
That means that the actual slope would look much steeper than it does.

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