Permanent Offset (stress strain)

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SUMMARY

The discussion focuses on calculating the permanent offset in a stress-strain curve, specifically between points A and C. The modulus of elasticity is given as E=200 GPa, with strain values at points B and E being 0.00125 and 0.05, respectively. The user initially struggled with finding the missing distance of BC through interpolation but later resolved the issue. Key calculations include determining epsilon using the formula epsilon=400x10^6/200x10^9.

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Marchese_alex
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Sorry for the inverted picture...

"y" axis: top to bottom is 500 400 250
"x" axis: at B is .00125 at E is .05
modulus elasticity is E=200GPa

so from AB=.00125
from CD=.002 calculated: epsilon=400x10^6/200x10^9

I need to find permanent offset(AC) and I don't know How to find the missing distance of BC
 

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ok, it is solved by interpolating but I don't know how to do that, to be more precise I have no clue how to interpolate
 
nevermind, got it
 

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