Work

On the continuum modeling of the foldable rod with rigid links

Year: 2025

Type: article

Abstract: We study the small-amplitude motion of a foldable, rod-like structure consisting of rigid links connected by torsional springs. The discrete model of the structure results in two dispersion curves: acoustic and optical. Depending on the structural parameters, stop bands may be observed. Using the long-wave approximation, we introduced a series of continuum models. However, the first-order approximation does not capture the behavior of the discrete model. Interestingly, in some cases, there is only an optical mode. However, higher-order approximations can reproduce behavior similar to that of the discrete model. Therefore, the bending-dominant structure requires an enhanced continuum model.

Source: Mechanics Research Communications

DOI: 10.1016/j.mechrescom.2025.104574

Authors: Igor Berinskii, Victor A. Eremeyev

Institutions: Tel Aviv University, University of Cagliari

Language: English

Topic: Acoustic Wave Phenomena Research

Subfield: Biomedical Engineering

Field: Engineering

Domain: Physical Sciences

Open Access status: hybrid

Estimated APC paid: $3,580