Publication detail

Elasticity and Strength of Nano-Fibre Reinforced Composites from First Principles

ČERNÝ, M. POKLUDA, J.

Original Title

Elasticity and Strength of Nano-Fibre Reinforced Composites from First Principles

Type

conference paper

Language

English

Original Abstract

Ab initio calculations of elastic moduli and theoretical uniaxial strength of composite lamina having continuous nano-fibre reinforcements are performed using pseudo-potential plane-wave code. Obtained results are used to verify validity of macro-scale empirical relations for composites (rules of mixtures) on the nano-scale. All quantities are computed from the dependence of crystal energy on a suitable deformation parameter. Results for molybdenum nano-fibres in vanadium matrix, presented as a particular example of the ab-initio analysis, reveal that elastic moduli of ideal composites increase with molybdenum concentration, following the simplest form of the linear mixture rule. On the other hand, the theoretical strength reaches the value corresponding to strength of pure molybdenum already at about 60% atomic concentration of Mo wires in the composite.

Keywords

Metal matrix, nano fibres, ab initio, theoretical strength, elastic moduli

Authors

ČERNÝ, M.; POKLUDA, J.

RIV year

2006

Released

1. 1. 2006

Location

Biarritz, France

Pages from

220

Pages to

226

Pages count

7

BibTex

@inproceedings{BUT20148,
  author="Miroslav {Černý} and Jaroslav {Pokluda}",
  title="Elasticity and Strength of Nano-Fibre Reinforced Composites from First Principles",
  booktitle="From the Science of Composites to Engineering Applications: the dawning future of composites",
  year="2006",
  pages="7",
  address="Biarritz, France"
}