Mesh sensitivity and experimental verification for randomized arbitrary geometry cavity-based acoustic metamaterials designed with 2D FEM simulations

Key Points

• Mesh sensitivity impacts the performance of cavity-based acoustic metamaterials, influencing wave propagation.
• Key evidence reveals that varying mesh density leads to observable differences in outcomes during experiments.
• Analysis utilized 2D finite element method simulations to model geometries of the acoustic metamaterials.
• Findings highlight the need for careful mesh selection in simulations to ensure accurate experimental replication.