Aspect ratio comparison analysis of hybrid re-entrant auxetic structures

In this study, sixteen models are designed with reentrant honeycomb geometry with different angles. Using the finite element method (FEM), a displacement on the horizontal axis is applied to the designed models and the vertical displacement values resulting from the applied horizontal displacement are determined and compared. Accordingly, with a horizontal displacement of 2 mm, the ratio of vertical strain to horizontal strain is found to be 2.51%, which is the highest, and 2.01%, which is the lowest. It is observed that the equivalent stresses increase with increasing angles in the design.