AI Article Synopsis
- This study investigates how a nonlinear elastic metamaterial with imperfect interfaces affects non-reciprocal signal transmission.
- Using mathematical tools like the Bloch theorem and stiffness matrix method, the researchers analyze band gaps and transmission coefficients in different frequency scenarios.
- The findings compare imperfect interfaces to perfect ones and include experimental tests, aiming to help in designing devices with unique transmission properties such as diodes.
Article Abstract
In this investigation, the non-reciprocal transmission in a nonlinear elastic metamaterial with imperfect interfaces is studied. Based on the Bloch theorem and stiffness matrix method, the band gaps and transmission coefficients with imperfect interfaces are obtained for the fundamental and double frequency cases. The interfacial influences on the transmission behaviour are discussed for both the nonlinear phononic crystal and elastic metamaterial. Numerical results for the imperfect interface structure are compared with those for the perfect one. Furthermore, experiments are performed to support the theoretical analysis. The present research is expected to be helpful to design tunable devices with the non-reciprocal transmission and diode behaviour of the elastic metamaterial.
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Source |
|---|---|
| http://www.ncbi.nlm.nih.gov/pmc/articles/PMC7897649 | PMC |
| http://dx.doi.org/10.1098/rspa.2020.0357 | DOI Listing |
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