The article delves into the development of a polyethylene-based metamaterial designed for effective acoustic control using a relaxed micromorphic modeling framework. It thoroughly examines dispersion curves, parameter fittings, and the implications of curvature on acoustic performance. Key sections discuss the consistency of the model with changes in material properties and unit cell size, while providing insights on how the inclusion of Curl P simplifies computations. The findings have significant implications for future developments in acoustic metamaterials, demonstrating the potential for enhanced performance through refined modeling approaches.
The relaxed micromorphic model demonstrates significant simplifications in expressions when incorporating Curl P, resulting in fewer asymptotes and easier computations for acoustic metamaterials.
The study shows that the relaxed micromorphic parameters exhibit a strong consistency with variations in both material properties and the size of the unit cell in acoustic metamaterials.
Utilizing a polyethylene-based metamaterial, the research provides insights on dispersion curves, symmetry, and fitting parameters that optimize acoustic control in various applications.
Our findings indicate that the cut-offs remain unaffected by higher-order coefficients, leading to a clearer understanding of acoustic behavior under relaxation constraints.
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