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

Ivan Argatov; Alexei Iantchenko; Vitaly Kocherbitov

doi:10.1007/s00161-017-0584-8

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arXiv · 1702.05175

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

Ivan Argatov·Alexei Iantchenko·Vitaly Kocherbitov

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Abstract

A large amplitude oscillatory shear (LAOS) is considered in the strain-controlled regime, and the interrelation between the Fourier transform (FT) and the stress decomposition (SD) 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.

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Ivan Argatov, Alexei Iantchenko, Vitaly Kocherbitov. 2017-02-16. How to define the storage and loss moduli for a rheologically nonlinear material?. https://doi.org/10.1007/s00161-017-0584-8

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