youngs modulus

huangyhg

young's modulus
some references give the value of e as 29 million psi, 29.5 million psi, or 30 million psi.  however e is independent of the yield stress.
visitor (visitor)11 feb 02 16:14
thanks eureka,
that is what i have always known and thought but i have seen the value of 40 million psi in several places for grade 70 which is got me wondering,
thanks though.
what about the e of stainless?>
fyi, the e of steel strand and rope is less due the "spring" effect of the rope/strand twist/helix...
e strand is about 20,000 ksi
e rope is about 25,000 ksi
but...the e of high tensile threaded bar (astm a722) varies excessively from astm standard value of 29,700 ksi.
it would seem that using the lesser value of 29ksi would be conservative.