“…However, it was unable to predict the effect ofγ on the overshoots (i.e., the growth of stress overshoot amplitude with increasingγ). The structure reorganization of particles was predicted qualitatively and the kinetics for the particle disorientation based on the Brownian motion was too slow in comparison with experimental results [Solomon et al, 2001;Lele et al, 2002;Ren et al, 2003a,b], which might imply that the matrix recovery affects the clay orientation. Sepehr et al [2008] are investigating the viscoelastic Giesekus model [Giesekus, 1982[Giesekus, , 1983Bird et al, 1987] coupled with Eq.…”