Realization and mechanism study of topological local resonance interface states in metamaterial sandwich beam with elastic foundation

Puntos clave

• Topological local resonance interface states are observed in the proposed metamaterial beam and elastic foundation.
• The analysis demonstrates resonance at specific frequencies, significantly enhancing acoustic properties.
• Investigative methods included experimental validation and numerical simulations to verify interface state phenomena.
• Potential applications in engineering and design of advanced acoustic materials indicate a promising technological direction.