Additively manufactured hybrid auxetic structures for enhanced low frequency acoustic performance through experiments and modelling.

ABSTRACT: Re-entrant auxetic designs, known for their superior mechanical properties, are increasingly explored in various industrial applications. This study aims to enhance the multifunctionality of such designs by preserving their mechanical characteristics while improving their acoustic performance. A multi-layer hybrid structure integrating microperforated panels with auxetic geometry was proposed. This design enabled each auxetic cavity to function as a Helmholtz resonator. Sample fabrication was performed with fused deposition modeling (FDM), an Additive Manufacturing technique, using PLA as build material. The perforations and minimum structural features were designed to maintain structural integrity and mechanical properties while facilitating ease of manufacturing. A computational modeling

SUBMITTER: Naveed AB 

PROVIDER: S-EPMC12223074 | biostudies-literature | 2025 Jul

REPOSITORIES: biostudies-literature