Force Analysis for Interactions beyond the Closest Neighbor in a Periodic Structure

TL;DR

This paper extends force analysis in periodic structures to include interactions beyond the closest neighbor, providing a foundation for more accurate vibrational analysis of complex metamaterials.

Contribution

It introduces a novel force analysis method that accounts for interactions beyond the nearest neighbors in periodic structures, enhancing understanding of their wave propagation properties.

Findings

Addresses force interactions beyond the closest neighbor

Lays foundation for vibrational analysis of complex structures

Improves accuracy of wave propagation modeling

Abstract

Periodic structures are a type of metamaterials in which their physical properties not only depend on the unit cell materials but also the way unit cells are arranged and interact with each other. Periodic structure have Interesting wave propagation properties making them suitable materials for acoustic filters and wave beaming devices. Bloch analysis is the main tool to analyze wave propagation in these structures. In most if not all engineering structures, each unit cell is interacting with adjacent cells. As such methods developed for vibrational and wave propagation analysis of engineering periodic structures, address forces exerted by the closest neighbor only. Since metamaterials properties depend on the interactions of unit cell with neighboring cells, more interactions means more complex band structure. In this paper, we address force analysis when interactions are beyond the closest neighbor. This analysis, lays the foundation for vibrational analysis of structures in which interactions are not restricted to the closest neighbor.