Reply With QuoteEvery stress-strain plot I've seen was reported in actual units. I don't think the strain is being report as a % but being converted into a multiple for ease of reading the plot.
A note would accompany the plot indicating strain units x 100
Hello all
I wondering anyone could help me with the following:-
When plotting a stress strain curve for a material I believe it is normal practice to express Strain in %.
My question would be that when calculating Youngs modulus is it typical to use Strain in units of %?
I if was to plot my stress strain curve then my equations would be:-
Stress = Force / Area
Strain = (Change in Length / Original Length)*100 (Strain is now in units of %)
If I wanted to calculate Youngs Modulus then my equation would be either:-
Youngs Modulus = (Force/Area) / [(Change in Length / Original Length)*100]
Or
Youngs Modulus = (Force/Area) / (Change in Length / Original Length)
Can anyone help?
Thanks
Every stress-strain plot I've seen was reported in actual units. I don't think the strain is being report as a % but being converted into a multiple for ease of reading the plot.
A note would accompany the plot indicating strain units x 100
Engineers Edge does have a Stress-Strain curve Approximation calculator based on the Ramburg-Osgood equations.
Enter known data and the curve data points are calculated plotted and tabulated.
See: https://www.engineersedge.com/calcul...urve_15438.htm
Stress-Strain.png
