Experimental Investigation of the Properties of Auxetic and Non-Auxetic Metamaterials Made of Metal During Penetration of Rigid Strikers

Abstract

Abstract The properties of metal honeycomb metamaterials with different internal structures were experimentally studied when they were punched along the normal by a rigid spherical striker. Experiments with metal samples of metamaterials with a negative Poisson’s ratio (auxetics) showed a greater resistance to penetration by impactors than experiments with metal samples having a honeycomb structure with a positive Poisson’s ratio.