Energy absorption studies of auxetic structures

Cellular structures possess lightweight and desirable mechanical properties. One class of such structures is called “auxetic” structures. “Auxetics” is the term used for structures that exhibit negative Poisson's ratio. These structures exhibit unique properties such as lateral contraction under axial compression or lateral expansion under axial tension. For any cellular structure, energy absorption is a crucial parameter. Because of lateral contraction, auxetic structures yield more material in the middle part of the structure, potentially improving its energy absorption capability. However, the energy absorption aspect of the auxetic structures was unexplored and it is explored in this work.