Erratum: Corrigendum to “Theoretical analysis of the calendered exiting thickness of viscoelastic sheets” [J. Non-Newton Fluid Mech. 177–178 (2012) 29–36] (Journal of Non-Newtonian Fluid Mechanics (2016) 234 (249–252))

This work is a corrigendum of the work entitled ”Theoretical analysis of the calendered exiting thickness of viscoelastic sheets”. In that investigation, the mass and momentum balance equations, which are based on the lubrication theory, were solved by using the regular perturbation technique and using Wi² as a perturbation parameter, where Wi represents the Weissenberg number. Additionally, the authors show through Figs. 3–12 the numerical validation of the asymptotic solution which was obtained in the limit of Wi << 1. However, in the aforementioned figures, we have involuntarily incurred in presenting curves considering numerical values of the Wi of order unit and much greater than one, that is Wi(=1,6,9), which contradicts the hypothesis to determine the solution by regular perturbation techniques. In this context in the present corrigendum we have included the corresponding numerical solution for the dimensionless variables of interest such as the axial distribution of the pressure gradient, dP/dχ, pressure distribution, P, velocity, u, the leave-off distance, λ, and the functions that describe the force and power, when the Weissenberg number takes values of Wi(=0.1,9,30).