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Effect of a special reinforcement on the elastic properties of micro- and nanocomposites with polymer matrix

Published online by Cambridge University Press:  27 January 2016

I. A. Guz ,
J. J. Rushchitsky  and
A. N. Guz
I. A. Guz*
Affiliation:
Centre for Micro- and Nanomechanics (CEMINACS), University of Aberdeen, Aberdeen, UK
J. J. Rushchitsky
Affiliation:
Timoshenko Institute of Mechanics, Kiev, Ukraine
A. N. Guz
Affiliation:
Timoshenko Institute of Mechanics, Kiev, Ukraine
*
i.guz@abdn.ac.uk
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Abstract

The paper revisits some of the well-known models in the mechanics of structurally heterogeneous media for the purpose of analysing their suitability to describe properties of nanocomposites and their mechanical behaviour. It also presents a new multi-component model for predicting the mechanical properties of micro- and nanocomposites reinforced either by whiskerising the microfibres or by bristlising the nanowires. The mathematical formulation of the model is based on using the Muskhelishvili complex potentials for each domain occupied by a separate component. As an example, the effective elastic constants are computed for fibrous composites with four different densities of whiskerisation. 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.

Type
Research Article
Information
The Aeronautical Journal , Volume 117 , Issue 1196 , October 2013 , pp. 1019 - 1036
Copyright
Copyright © Royal Aeronautical Society 2013 

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