The effect of symmetrical horizontal gradient design on a novel lattice structure

Abstract

In our former publication a novel Lattice structure was proposed, in hopes of eliminating the buckling behavior of the Auxetic Honeycomb unit cell. For certain designs the buckling behavior is still present. In our current paper symmetrical horizontal gradient design is applied to the buckling specimens in hopes of achieving the desired continuous auxetic behavior. Compressive Finite Element simulations were used to investigate the effect. Only the implementation of extreme horizontal gradient design can in some cases eliminate buckling.