Our research investigated the energy absorption characteristics of chiral auxetic lattices filled cylindrical composite tubes subjected to a uniaxial and lateral quasi-static load. The lattice structures were manufactured using 3D printing technique. Carbon fiber without filler material initially crushing same types experiment then performed on tubes. For different cases, load–displacements cur...

This paper is devoted to a category of metamaterials called auxetics, identified by their negative Poisson's ratio. Our work consists in exploring geometrical strategies generate irregular auxetic structures. More precisely we seek reduce the ratio ?, pruning an network based solely on geometric criteria. We introduce strategy combining pure algorithm followed physics-based testing phase determ...

Helical Auxetic Yarns (HAYs) can be used in a variety of applications from healthcare to blast and impact resistance. This work focuses on the effect use different core materials (e.g. rubber, polyurethane, polytetrafluoroethylene/teflon, polypropylene, polyetheretherketone, polycarbonate, acetal) with nitinol wire wrap component maximum Negative Poisson Ratio (NPR) produced thus auxetic perfor...

Poisson’s ratio, one of the important mechanical properties materials and structures, is positive for almost all known structures. However, auxetic or structures has negative ratios. Characteristics are very to be used in design a new structure. Computational experimental studies on have been increasing literature. In this study, lattice structure with different ratios was designed studied by f...