Elastic properties of two‐dimensional soft polydisperse trimers at zero temperature | Zendy

Narojczyk J. W. | Zendy; Wojciechowski K. W. | Zendy

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Elastic properties of two‐dimensional soft polydisperse trimers at zero temperature

Author(s) -

Narojczyk J. W.,

Wojciechowski K. W.

Publication year - 2007

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.200572713

Subject(s) - dispersity , poisson's ratio , poisson distribution , materials science , elastic modulus , shear modulus , thermodynamics , inverse , modulus , zero (linguistics) , physics , composite material , mathematics , polymer chemistry , geometry , linguistics , statistics , philosophy

The elastic properties of two‐dimensional (2D) cyclic trimers, each constituted of three soft polydisperse disks interacting by n ‐inverse‐power‐potential, were numerically determined for the static case (i.e. at temperature T = 0). The influence of a structural disorder (polydispersity of the disk sizes) on the bulk modulus, the shear modulus, and the Poisson's ratio of the system was studied. Negative Poisson's ratio has been found for a range of densities at some values of the softness parameter n –1 and polydispersity. Simple mathematical formulae describing the dependence of elastic properties of the model on the softness parameter and polydispersity are proposed. (© 2007 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim)

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