Rheological Analysis of Bulging of Continuously Cast Slabs with Elementary Bending Theory

Abstract

The bulging of the shell in continuously cast steel slabs between the retaining rolls has been computed in terms of elementary bending theory. Creep and elasto-plasticity are taken into account at the same time as the factors influencing the bulging. The calculated results are as follows:
i) Bulging pattern comprises concave zone around the exit and convex zone near the inlet of a retaining roll.
ii) The depth of the above mentioned wave is larger than that of conventional bulging as measured at the middle of the roll span.
iii) The bulging calculated by the present study depends sensibly on the parameters for the stressstrain relationship of the material.