Question:
I remember the hardness values of metals are almost the same as the
stress at strain=8%. But I can't fine the reference I'v read. Does
anyone knows that where I can find that information ? Thank you very
much.
Answer:
Probably in a paper by Liu and J. Gurland from Brown University in a series
on deformation and fracture of spheroidized steels. But I don't have the
exact citation handy from about 15-25 years ago.
It appears that you cite a rule of thumb. I'd rather stick to conversion
tables Hardness -> Yield Strenght (which are still inaccurate, but
probably better than what you have in mind...)
