expressions for the first, third, and fifth harmonics of the alternating shear stress response in
large-amplitude oscillatory shear (LAOS). We also derive corresponding expressions for the
zeroth, second, and fourth harmonics of both the first and second normal stress differences.
These harmonics are found to depend upon just two dimensionless groups: the Deborah
and Weissenberg numbers, each of which causes non-Newtonian behavior. The form of the …