Tunable Wave-Propagation Band gap via Stretching Kirigami Sheets
Tunable Wave-Propagation Band gap via Stretching Kirigami Sheets
复制标题
DOI：
10.1103/physrevapplied.17.064054
复制
发表时间：
2021-11
影响因子：
4.6
通讯作者：
H. Khosravi;Suyi Li
中科院分区：
文献类型：
--
作者：
H. Khosravi;Suyi Li
这项研究考察了具有“之”字形分布平行切割的拉伸屈曲Kirigami薄片中的Braggs带隙及其机械调谐。当拉伸超过临界阈值时，kirigami会发生平面外屈曲，并生成3D周期结构。我们的理论计算、数值模拟和实验证实了横向弹性波传播带隙及其与拉伸的相关性。这一结果为使用kirigami作为一种简单而有效的方法来创建和调整波传播控制的周期性开辟了一条途径。
This study examines the Braggs bandgap and its mechanical tuning in a stretch-buckled kirigami sheet with “zig-zag” distributed parallel cuts. When stretched beyond a critical threshold, the kirigami buckles out-of-plane and generates a 3D periodic architecture. Our theoretical calculation, numerical simulation, and experiments confirm the transverse elastic wave propagation bandgaps and their correlation to stretching. This result opens an avenue of using kirigami as a simple and effective approach for creating and adapting periodicity for wave propagation control.