title: Low porosity metallic periodic structures with negative Poisson's ratio.
abstract: Auxetic behavior in low porosity metallic structures is demonstrated via a simple system of orthogonal elliptical voids. In this minimal 2D system, the Poisson's ratio can be effectively controlled by changing the aspect ratio of the voids. In this way, large negative values of Poisson's ratio can be achieved, indicating an effective strategy for designing auxetic structures with desired porosity.
authors.affiliation: School of Engineering and Applied Science, Harvard University, Cambridge, MA 02138, USA.
authors.forename: Michael
authors.initials: M
authors.lastname: Taylor
authors.forename: Luca
authors.initials: L
authors.lastname: Francesconi
authors.forename: Miklós
authors.initials: M
authors.lastname: Gerendás
authors.forename: Ali
authors.initials: A
authors.lastname: Shanian
authors.forename: Carl
authors.initials: C
authors.lastname: Carson
authors.forename: Katia
authors.initials: K
authors.lastname: Bertoldi
keywords: auxetic; negative poisson's ratio; periodic