How to define the storage and loss moduli for a rheologically nonlinear material?

• A large amplitude oscillatory shear (LAOS) is considered in the strain-controlled regime, and the interrelation between the Fourier transform and the stress decomposition approaches is established. Several definitions of the generalized storage and loss moduli are examined in a unified conceptual scheme based on the Lissajous–Bowditch plots. An illustrative example of evaluating the generalized moduli from a LAOS flow is given.

Nyckelord

Large amplitude oscillatory shear

Storage and loss moduli

Fourier transform rheology

Stress decomposition

Publikations- och innehållstyp

ref (ämneskategori)

art (ämneskategori)