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arXiv · 1805.08432

Scott-Blair models with time-varying viscosity

Ivano Colombaro·Roberto Garra·Andrea Giusti·Francesco Mainardi
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Abstract

In a recent paper, Zhou et al. [Mech Time-Depend Mater (2017) 21: 151] studied the time-dependent properties of Glass Fiber Reinforced Polymers composites by employing a new rheological model with a time-dependent viscosity coefficient. This rheological model is essentially based on a generalized Scott-Blair body with a time-dependent viscosity coefficient. Motivated by this study, in this note we suggest a different generalization of the Scott-Blair model based on the application of Caputo-type fractional derivatives of a function with respect to another function. This new mathematical approach can be useful in viscoelasticity and diffusion processes in order to model systems with time-dependent features. In this paper we also provide the general solution of the creep experiment for our improved Scott-Blair model together with some explicit examples and illuminating plots.

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Ivano Colombaro, Roberto Garra, Andrea Giusti, Francesco Mainardi. 2018-07-07. Scott-Blair models with time-varying viscosity. https://doi.org/10.1016/j.aml.2018.06.022

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