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Designing Metamaterials Using Geometrical Nonlinearity to Form a Super Attenuation Band at Low Frequencies

Grant number: 22/11995-2
Support Opportunities:Scholarships in Brazil - Post-Doctoral
Effective date (Start): December 01, 2022
Status:Discontinued
Field of knowledge:Engineering - Mechanical Engineering - Mechanics of Solids
Principal Investigator:Domingos Alves Rade
Grantee:Vinícius Germanos Cleante
Host Institution: Divisão de Engenharia Mecânica (IEM). Instituto Tecnológico de Aeronáutica (ITA). Ministério da Defesa (Brasil). São José dos Campos , SP, Brazil
Associated research grant:18/15894-0 - Periodic structure design and optimization for enhanced vibroacoustic performance: ENVIBRO, AP.TEM
Associated scholarship(s):24/02409-8 - On the use of local resonators to form a super attenuation band in a beam meta-structure, BE.EP.PD

Abstract

This document describes the plan of work. The project is scheduled to be carried out in 24 months. The project will investigate theoretically metamaterials using geometric nonlinearity aiming at achieving attenuation bands at frequencies lower than 100 Hz. This project will also design and perform experimental tests to validate the theoretical predictions made from the developed model, investigate the practical issues in realising nonlinear metamaterials, and determine their limitations in terms of the attenuation of vibration transmission, also their practical applications in the engineering area.

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