The effect of physical nonlinearity of the interfacial layer between carbon nanotube and polymer matrix on viscoelastic response of nanocomposite materials under harmonic loading
| Autor: | Mohammad Hashemi, Jafar Amraei |
|---|---|
| Rok vydání: | 2018 |
| Předmět: |
chemistry.chemical_classification
Nanocomposite Materials science Mechanical Engineering 02 engineering and technology Carbon nanotube Dynamic mechanical analysis Polymer 021001 nanoscience & nanotechnology Viscoelasticity law.invention Condensed Matter::Soft Condensed Matter Condensed Matter::Materials Science 020303 mechanical engineering & transports 0203 mechanical engineering chemistry Mechanics of Materials law Dynamic modulus Materials Chemistry Ceramics and Composites Harmonic Composite material 0210 nano-technology Layer (electronics) |
| Zdroj: | Journal of Composite Materials. 52:3731-3744 |
| ISSN: | 1530-793X 0021-9983 |
| DOI: | 10.1177/0021998318769467 |
| Popis: | In present paper, a micro- and macromechanic model is developed to determine the effective nonlinearly viscoelastic response of polymeric nanocomposites reinforced with carbon nanotubes under harmonic loading. By using the correspondence principle in viscoelastic and linearization approach, a three-phase micromechanical model with taking into account the viscoelastic response of the interfacial layer between the reinforcement and the bulk polymer matrix based on the concept of complex moduli is proposed. By employing the present model, the effects of volume fraction of the single-walled carbon nanotubes and also, amplitude of monoharmonic loading on the nonlinear viscoelastic response of polymeric nanocomposites are conducted. For polymeric nanocomposites including unidirectionally aligned carbon nanotubes, numerical results indicate that the effects of both inelastic response of interfacial layer and volume fraction of the single-walled carbon nanotubes on the loss and storage moduli are significantly important. It should be noticed that in mechanical analysis of structural elements made of single-walled carbon nanotubes without consideration of interfacial layer may not give precise predictions. Besides, this paper suggests a new procedure for predicting the complex moduli dependence on frequency and amplitude of strain intensity. |
| Databáze: | OpenAIRE |
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