- 期刊
Structural Design and Negative Poisson's Ratio Analysis of Inner Concave Graphene Kirigami
摘要
Kirigami technology is a method of controlling material properties, by introducing different geometric configurations to transform ordinary traditional materials into mechanical metamaterials with specific properties. While the inner concave kirigami structure has been a widely studied object, this paper applies it to graphene materials and then investigates the effect of different parameters on the negative Poisson's ratio of the inner concave hexagonal structure using molecular dynamics simulation algorithms. This research is helpful in exploring the properties and applications of this structure in graphene materials, providing new ideas and methods for research and practice in related fields. The simulation results found that the diagonal ribs are the key factor that determines whether a negative Poisson's ratio can be generated. When the diagonal ribs become longer, the auxetic behavior of the structure will increase, and when the diagonal ribs become thicker, the auxetic behavior of the structure will weaken. The findings of this work provide important references and inspirations for future research and practice.