title: Auxetic Perforated Mechanical Metamaterials with Randomly Oriented Cuts.
abstract: Perforated systems with quasi-disordered arrays of slits are found to exhibit auxetic characteristics almost as much as their traditional ordered "rotating-squares" counterparts. This provides a highly robust methodology for constructing auxetics that may be used for various practical applications such as skin grafting, where a high degree of precision may not always be achievable.
authors.affiliation: Metamaterials Unit, Faculty of Science, University of Malta, Msida, MSD 2080, Malta.|Department of Chemistry, Faculty of Science, University of Malta, Msida, MSD 2080, Malta.
authors.forename: Joseph N
authors.initials: JN
authors.lastname: Grima
authors.affiliation: Metamaterials Unit, Faculty of Science, University of Malta, Msida, MSD 2080, Malta.
authors.forename: Luke
authors.initials: L
authors.lastname: Mizzi
authors.affiliation: Metamaterials Unit, Faculty of Science, University of Malta, Msida, MSD 2080, Malta.
authors.forename: Keith M
authors.initials: KM
authors.lastname: Azzopardi
authors.affiliation: Metamaterials Unit, Faculty of Science, University of Malta, Msida, MSD 2080, Malta.
authors.forename: Ruben
authors.initials: R
authors.lastname: Gatt
keywords: auxetics; finite element analysis; mechanical metamaterials; perforated systems