A fast prediction method for the performance of stacked membrane-type metamaterials has been developed using An impedance-mobility model.  Matthew Blevins of the University of Nebraska-Lincoln introduced the method and a Matlab platform regarding this approach at the Spring 2015 meeting of Acoustical Society of America.  The work is collaborated and supervised by Dr. Siu-Kit Lau and Dr. Lily Wang.  Metamaterials are man-made materials to have properties that have not yet been found in nature. Membrane-type acoustic metamaterials have been proven to exhibit high low-frequency transmission loss despite their small thickness and light weight.  The efficient model based on the impedance-mobility can be used to facilitate design and optimization of stacked membrane-type acoustic metamaterials.

Abstract (metamaterials) of the presentation in the ASA meeting spring 2015 in Pittsburgh, PA