On the design workflow of auxetic metamaterials for structural applications

Abstract Auxetic metamaterials exhibit an unexpected behaviour of a negative Poisson’s ratio (NPR), meaning they expand transversely when stretched longitudinally. This is generated predominantly due to the way individual elements auxetic lattice are structured. These structures gaining interest in wide variety applications such as energy absorption, sensors, smart filters, vibration isolation and medical etc. Their potential could be further exploited by use additive manufacturing. Currently there lack guidance on how design these structures. paper highlights state-of-the-art its commonly used unit-cell types. It explores approaches literature creating lattices for different proposes, first time, workflow comprising design, simulation testing provides process using structural applications.