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Front Cover: Stability criteria for continuous and discrete elastic composites and the influence of geometry on the stability of a negative‐stiffness phase (Phys. Status Solidi B 7/2012)
Author(s) -
Kochmann Dennis M.
Publication year - 2012
Publication title -
physica status solidi (b)
Language(s) - English
Resource type - Reports
SCImago Journal Rank - 0.51
H-Index - 109
eISSN - 1521-3951
pISSN - 0370-1972
DOI - 10.1002/pssb.201290016
Subject(s) - auxetics , stiffness , moduli , materials science , cover (algebra) , stability (learning theory) , front cover , phase (matter) , geometry , composite material , stiffness matrix , elastic modulus , poisson's ratio , section (typography) , metamaterial , mathematics , structural engineering , physics , poisson distribution , computer science , mechanical engineering , engineering , quantum mechanics , machine learning , statistics , optoelectronics , operating system
Stability analysis of elastic two‐phase composite materials reveals stable and unstable combinations of the elastic moduli of composite constituents, showing that negative‐stiffness phases can be stabilized by a sufficiently stiff and thick matrix phase. Numerical studies confirm the important influence of geometry on stabilizing the unstable. For further details see the article by Dennis M. Kochmann on pp. 1399–1411 . This article is part of the Topical Section “Auxetic Materials and Related Systems”, guest‐edited by Ruben Gatt, Joseph N. Grima, Jakub W. Narojczyk, and Krzysztof W. Wojciechowski (see the Preface on pp. 1313–1314 ), which comprises 15 articles highlighting recent progress in the research on mechanical metamaterials with emphasis on auxetic systems, i.e., materials exhibiting counter‐intuitive negative behaviour (such as negative Poisson's ratio).