Modelling properties of micro- and nanocomposites with brush-like reinforcement

I A Guz, A N Guz, J J Rushchitsky

Research output: Contribution to journalArticle

5 Citations (Scopus)

Abstract

This paper presents a new four-component model for predicting the mechanical properties of micro- and nanocomposites reinforced either by whiskerizing the microfibres or by bristlizing the nanowires. The model is a generalization of the existing three-component model. Instead of the thin shell model for the fibre coating, two different components are distinguished: the solid coating surrounding the fibre and the bristled coating surrounding the solid coating. The mathematical formulation of the model is based on using, the Muskhelishvili complex potentials for each domain occupied by a separate component. The effective elastic constants are computed for fibrous composites with four different densities of wiskerisation. It is shown that the increase in the number of bristles per unit surface of the fibres gives a very strong rise to the value of Young's modulus. However, the shear modulus, being the driving parameter for the strength estimation of the entire composition, is less sensitive to this factor.

Original languageEnglish
Pages (from-to)154-160
Number of pages7
JournalMaterialwissenschaft und Werkstofftechnik
Volume40
Issue number3
DOIs
Publication statusPublished - Mar 2009

Keywords

  • composite materials
  • fibres
  • whiskers
  • effective properties
  • nano-scale
  • micro-scale
  • bristled nano-centipedes
  • wave-propagation
  • microcomposites
  • microwhiskers
  • mechanics

Cite this

Modelling properties of micro- and nanocomposites with brush-like reinforcement. / Guz, I A; Guz, A N; Rushchitsky, J J.

In: Materialwissenschaft und Werkstofftechnik, Vol. 40, No. 3, 03.2009, p. 154-160.

Research output: Contribution to journalArticle

@article{a1eada086f6a4290a3d0d6d26fc3d128,
title = "Modelling properties of micro- and nanocomposites with brush-like reinforcement",
abstract = "This paper presents a new four-component model for predicting the mechanical properties of micro- and nanocomposites reinforced either by whiskerizing the microfibres or by bristlizing the nanowires. The model is a generalization of the existing three-component model. Instead of the thin shell model for the fibre coating, two different components are distinguished: the solid coating surrounding the fibre and the bristled coating surrounding the solid coating. The mathematical formulation of the model is based on using, the Muskhelishvili complex potentials for each domain occupied by a separate component. The effective elastic constants are computed for fibrous composites with four different densities of wiskerisation. It is shown that the increase in the number of bristles per unit surface of the fibres gives a very strong rise to the value of Young's modulus. However, the shear modulus, being the driving parameter for the strength estimation of the entire composition, is less sensitive to this factor.",
keywords = "composite materials, fibres, whiskers, effective properties, nano-scale, micro-scale, bristled nano-centipedes, wave-propagation, microcomposites, microwhiskers, mechanics",
author = "Guz, {I A} and Guz, {A N} and Rushchitsky, {J J}",
year = "2009",
month = "3",
doi = "10.1002/mawe.200700421",
language = "English",
volume = "40",
pages = "154--160",
journal = "Materialwissenschaft und Werkstofftechnik",
issn = "0933-5137",
publisher = "Wiley-VCH Verlag",
number = "3",

}

TY - JOUR

T1 - Modelling properties of micro- and nanocomposites with brush-like reinforcement

AU - Guz, I A

AU - Guz, A N

AU - Rushchitsky, J J

PY - 2009/3

Y1 - 2009/3

N2 - This paper presents a new four-component model for predicting the mechanical properties of micro- and nanocomposites reinforced either by whiskerizing the microfibres or by bristlizing the nanowires. The model is a generalization of the existing three-component model. Instead of the thin shell model for the fibre coating, two different components are distinguished: the solid coating surrounding the fibre and the bristled coating surrounding the solid coating. The mathematical formulation of the model is based on using, the Muskhelishvili complex potentials for each domain occupied by a separate component. The effective elastic constants are computed for fibrous composites with four different densities of wiskerisation. It is shown that the increase in the number of bristles per unit surface of the fibres gives a very strong rise to the value of Young's modulus. However, the shear modulus, being the driving parameter for the strength estimation of the entire composition, is less sensitive to this factor.

AB - This paper presents a new four-component model for predicting the mechanical properties of micro- and nanocomposites reinforced either by whiskerizing the microfibres or by bristlizing the nanowires. The model is a generalization of the existing three-component model. Instead of the thin shell model for the fibre coating, two different components are distinguished: the solid coating surrounding the fibre and the bristled coating surrounding the solid coating. The mathematical formulation of the model is based on using, the Muskhelishvili complex potentials for each domain occupied by a separate component. The effective elastic constants are computed for fibrous composites with four different densities of wiskerisation. It is shown that the increase in the number of bristles per unit surface of the fibres gives a very strong rise to the value of Young's modulus. However, the shear modulus, being the driving parameter for the strength estimation of the entire composition, is less sensitive to this factor.

KW - composite materials

KW - fibres

KW - whiskers

KW - effective properties

KW - nano-scale

KW - micro-scale

KW - bristled nano-centipedes

KW - wave-propagation

KW - microcomposites

KW - microwhiskers

KW - mechanics

U2 - 10.1002/mawe.200700421

DO - 10.1002/mawe.200700421

M3 - Article

VL - 40

SP - 154

EP - 160

JO - Materialwissenschaft und Werkstofftechnik

JF - Materialwissenschaft und Werkstofftechnik

SN - 0933-5137

IS - 3

ER -