ABSTRACT
Fig.19.16Developmentofstress-strainhysteresisloopforrollsurfaceat beginningofrolling.AdaptedfromHarper[22].
TheelasticstrainEBatpointBandcorrespondingstressrBcanbecalculatedfromthefollowing equations[21]:
where
a(iiT)s 1-v
vPoisson'sratioforelasticstrain a=coefficientofthermalexpansion
(iiT)stemperaturedifferencebetweenrollsurfaceandrollbodyatpointB.
