Hi,
In Table C3.2 at page C3.11 of Bruhn's book, there is a fo value for Yield strengh.
I am wondering if there is a corresponding formula such as "fo/Ftu=6/eu2*{1/3*(Ftu/E)2+eu'*((m+1)/(m+2))*(Ftu/E)+(m/2m+1)*(eu')2}-2" for the yield strength?
Thank you.
laotseng