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Auxetic properties of cubic metal single crystals
Author(s) -
Krasavin Victor V.,
Krasavin Alexey V.
Publication year - 2014
Publication title -
physica status solidi (b)
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.51
H-Index - 109
eISSN - 1521-3951
pISSN - 0370-1972
DOI - 10.1002/pssb.201451129
Subject(s) - auxetics , anisotropy , materials science , single crystal , basis (linear algebra) , tensor (intrinsic definition) , poisson's ratio , metal , connection (principal bundle) , poisson distribution , geometry , mathematical analysis , mathematics , condensed matter physics , crystallography , physics , composite material , optics , chemistry , metallurgy , statistics
The behaviour of the Poisson's ratio is investigated on the basis of derived by the authors explicit equations determining the components of the compliance tensor in an arbitrarily rotated coordinate frame. Clear analytical expressions describing the angular dependencies of the auxetic properties have been found and the crystallographic regions possessing such auxetic behaviour have been revealed for single crystals of elemental metals. This was completed with the straightforward expressions for calculation of the maximum values of auxeticity. The connection between the auxetic properties and the level of anisotropy of single crystals as well as the Cauchy relation has been analysed for various metals with BCC and FCC lattices.