The article presents a comprehensive analysis of a novel polyethylene-based metamaterial designed for acoustic control, utilizing a relaxed micromorphic modeling approach. It discusses the influence of unit cell properties and size on micromorphic parameters, with a special focus on the tetragonal symmetry of elastic tensors. Various fitting procedures for these parameters are explored, revealing critical asymptotic behaviors under different conditions. The findings suggest significant potential for applying these models in real-world scenarios, particularly in enhancing performance in acoustic applications, leading to promising future perspectives in material design and engineering.
The article explores the design and modeling of a polyethylene-based metamaterial for achieving advanced acoustic control through a relaxed micromorphic framework tailored for finite size materials.
Key findings discussed in the paper highlight how variations in unit cell properties and size influence the consistency of micromorphic parameters, crucial for effective metamaterial performance.
Fitting procedures for the relaxed micromorphic parameters, including scenarios both with and without curvature, reveal distinct asymptotic behaviors that are essential for understanding acoustic dispersion.
The conclusions underscore the potential of using relaxed micromorphic models to predict acoustic behaviors accurately, paving the way for innovative applications in materials engineering.
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