公开(公告)号：US20230185999A1

公开(公告)日：2023-06-15

申请号：US17639522

申请日：2021-07-02

Applicant: DALIAN UNIVERSITY OF TECHNOLOGY

Inventor： Yiqiang WANG ,  Chen DU ,  Zhan KANG

IPC: G06F30/27

CPC classification number: G06F30/27 ,  G06F2111/06

Abstract: A kirigami metamaterial with tunable auxetic property under large tensions and a design method for it. The kirigami metamaterial is composed of a plurality of square unit cells in orderly arrangement. The unit cells are arrayed in periodic, gradient and inhomogeneous layouts, corresponding to the kirigami metamaterials with homogeneous, gradient and inhomogeneous auxetic properties. The design method is as follows: Firstly, the heuristic design of the unit cell is obtained by using the structural optimization method for fully considering out-of-plane deformations. Secondly, the optimization result obtained from the above step is processed by geometric reconstruction and parametric modeling, and then the auxetic properties with different geometric parameters are obtained. Finally, the kirigami metamaterial is composed of a plurality of unit cells arrayed into a specific layout. The present invention can achieve a variety of tunable auxetic trends adjusted with the tensions by modifying the cut parameters.