Reply To: true stress -true strain or engineering stress -engineering strain?

[m.caragiuli]

Thank you Peter! It's clear now. 

One more question...if an article shows the figure of a stress-strain curve, how can I understand if it is true stress true strain or eng. stress/eng. strain? 

I have another question about a post processing toot. Not sure if I can ask for it here or on a new post. However, what Ansys means by deformation? Is it the change in shape with respect to the original shape ? If so, which is the difference with the strain?

Thanks