Equibiaxial extensional flow of wheat gluten plasticized with glycerol

The aim of the present work has been to study the equibiaxial extensional flow of gluten/glycerol (60/40) mixture under lubricated squeezing flow with four different crosshead speeds at room temperature. The hyperelastic model with a strain energy potential of the Mooney–Rivlin form is applied to describe the biaxial stress as a function of strain at strains below 0.7. The strain rate thinning behavior of biaxial viscosity at constant strains is revealed.