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ČERNÝ, M. POKLUDA, J.
Original Title
Ab initio Study of Elasticity and Strength of Nano-fibre Reinforced Composites
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 tungsten nano-fibres in niobium matrix, presented as a particular example of the ab-initio analysis, reveal that bulk moduli of ideal composites follow the simplest form of the linear mixture rule. On the other hand, Young moduli and theoretical strengths exhibit linear dependence on tungsten atomic concentration only till 80% concentration is reached.
Keywords
nano-fibre composites, ab initio calculations, rules of mixtures, elastic moduli, uniaxial strength
Authors
ČERNÝ, M.; POKLUDA, J.
RIV year
2006
Released
1. 1. 2006
Publisher
Springer
Location
Alexandroupolis
ISBN
1-4020-4971-4
Book
Fracture of Nano and Engineering Materials and Structures
Pages from
873
Pages to
878
Pages count
6
BibTex
@inproceedings{BUT19934, author="Miroslav {Černý} and Jaroslav {Pokluda}", title="Ab initio Study of Elasticity and Strength of Nano-fibre Reinforced Composites", booktitle="Fracture of Nano and Engineering Materials and Structures", year="2006", pages="6", publisher="Springer", address="Alexandroupolis", isbn="1-4020-4971-4" }