A homogenization approach for effective viscoelastic properties of porous media
| Autor: | S.T. Nguyen, Minh-Ngoc Vu, Minh-Quan Thai, Quy-Dong To |
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| Rok vydání: | 2016 |
| Předmět: |
Mathematical optimization
Materials science Inverse 02 engineering and technology Mechanics 021001 nanoscience & nanotechnology Homogenization (chemistry) Viscoelasticity Physics::Geophysics 020303 mechanical engineering & transports 0203 mechanical engineering Rheology Mechanics of Materials Laplace–Carson transform General Materials Science 0210 nano-technology Porous medium Porosity Instrumentation Spherical pore |
| Zdroj: | Mechanics of Materials. 100:175-185 |
| ISSN: | 0167-6636 |
| DOI: | 10.1016/j.mechmat.2016.06.015 |
| Popis: | The aim of this paper is to model the effective linear non-ageing viscoelastic properties of porous media based on a micromechanical approach. A porous medium is modeled as a mixture of a viscoelastic matrix and pore inclusions. The Generalized Maxwell (GM) viscoelastic model is employed for both the solid matrix and the porous medium. The effective parameters of the viscoelastic GM rheology of the porous medium, which are functions of the porosity and the viscoelastic properties of the solid phase, are derived considering the short and long term behaviors in Laplace–Carson space (LC). They are validated against exact solutions obtained from the inverse LC transform for a simple configuration. The proposed method allows avoiding the complexity of the inverse LC transform in general condition. An application for cement with assumption of spherical pore is considered to illustrate the powerful of this method. |
| Databáze: | OpenAIRE |
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