In-plane impact resistance enhancement with a graded cell-wall angle design for auxetic metamaterials

Auxetic metamaterials have demonstrated promising applications in crushing energy absorption. This paper proposes cell-wall angle graded auxetic metamaterials and investigates the potential benefits to in-plane impact resistance by using dynamic finite element analysis. It is the first study on enhancing impact resistant ability of auxetic metamaterials by using the cell-wall angle graded design. Firstly, the effectiveness of this graded design...