- #1
chrisbroward
- 9
- 1
- Homework Statement
- & which curve goes with which scale? I'm a bit lost
- Relevant Equations
- stress-strain
Why does this stress-strain diagram have two curves & x-axis scales?
Click For Summary
Discussion Overview
The discussion revolves around the interpretation of a stress-strain diagram that features two curves and differing x-axis scales. Participants explore the implications of the graph for understanding concepts such as modulus of toughness and resilience, as well as the representation of deformation.
Discussion Character
- Debate/contested
- Homework-related
- Technical explanation
Main Points Raised
- Some participants express confusion about the lack of information accompanying the graph, suggesting that a caption and description are necessary.
- Others question the relevance of discussing a graph that lacks information, indicating a disconnect in the conversation.
- A participant mentions that the graph shows a curve they are familiar with, including yield and fracture points, and speculates that the lower curve represents some form of deformation.
- One participant clarifies that there is only one curve presented in two parts, with one part zooming in on the initial section of the scale, sharing the same vertical axis.
- Another participant notes that the lower curve is horizontally stretched at a scale of 80 times compared to the upper curve, implying that the actual slope would appear steeper than depicted.
Areas of Agreement / Disagreement
Participants do not reach a consensus on the interpretation of the graph. There are competing views regarding the significance of the two curves and the information presented.
Contextual Notes
Some assumptions about the graph's context and the definitions of terms like modulus of toughness and resilience remain unresolved. The discussion reflects varying levels of understanding among participants.
- #2
Frabjous
Gold Member
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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).
Last edited:
- #3
chrisbroward
- 9
- 1
Well... it doesn'tFrabjous said:
- #4
Frabjous
Gold Member
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- 2,410
Why are you worried about a graph that has no information associated with it?chrisbroward said:
- #5
chrisbroward
- 9
- 1
Lol what type of question is this?Frabjous said:
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.
- #6
chrisbroward
- 9
- 1
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.
- #7
Baluncore
Science Advisor
2025 Award
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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.
Notice how one ends where the other begins, so you know which is low range, starting at zero, and which is the high range.
- #8
chrisbroward
- 9
- 1
Oh okay! This makes a lot more sense thank you!Baluncore said:
- #9
Lnewqban
Homework Helper
Gold Member
- 4,145
- 2,357
Please, see:chrisbroward said:
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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