A High Damping Cellular Material with Integrated Arrays of Nanocomposite Web-Like Vibration Absorbers
Abstract
Highly cut down paper to fit 100MB requirement of DTIC This report presents a comprehensive overview of the research carried out during the performance period spanning from June 1, 2020, to May 31, 2023. The project represents a multidimensional exploration, focusing on the conceptualization, creation, and experimental assessment of an innovative cellular material hosting nanocomposite membrane resonators. The overarching objective was to generate wide, nonlinear bandgaps, transcending the limitations of linear, amplitude-invariant bandgaps, thereby achieving superior control over wave propagation dynamics. Drawing inspiration from the intrinsic periodicity of honeycombs and the ultralight, resilient, nonlinear characteristics of spider webs, our resonators were designed to exhibit multiple nonlinear local resonances, encompassing both axi-symmetric and skew symmetric modes.
Document Details
- Document Type
- Technical Report
- Publication Date
- Jan 24, 2024
- Accession Number
- AD1229705
Entities
People
- Walter Lacarbonara
Organizations
- Sapienza University of Rome