Education and research program in smart materials and applications

• Grant number: 25/13553-5
• Support Opportunities: Regular Research Grants
• Start date: October 01, 2025
• End date: September 30, 2026
• Field of knowledge: Engineering - Aerospace Engineering - Aerospace Structures
• Principal Investigator: Carlos de Marqui Junior
• Grantee: Carlos de Marqui Junior
• Host Institution: Escola de Engenharia de São Carlos (EESC). Universidade de São Paulo (USP). São Carlos , SP, Brazil
• City of the host institution: São Carlos
• Associated research grant: 18/15894-0 - Periodic structure design and optimization for enhanced vibroacoustic performance: ENVIBRO, AP.TEM
• Associated scholarship(s): 25/23162-3 - Modeling and experimental verification of a piezoelectric metamaterial beam, BP.IC; 25/23214-3 - Modeling and experimental verification of an active piezoelectric phononic crystal, BP.IC

Abstract

Metamaterials and phononic crystals are engineered materials exhibiting properties that do not occur naturally. They can tailor the propagation of elastic waves through band gaps, which result from wave scattering in phononic crystals or are opened due to resonant effects in metamaterials. This research includes two scientific initiation scholarships. The first will focus on the modeling and experimental validation of tunable piezoelectric metamaterials with resonant shunt circuits and phononic crystals that incorporate negative capacitance shunts. In the second one, a phononic crystal composed of an elastic beam with periodically distributed macro fiber composite (MFC) piezoelectric bimorphs will be numerically and experimentally investigated. By utilizing the MFCs as actuators, the motivation is to actively control the local stiffness along the length of the beam, thereby allowing tunable the Bragg band gaps. (AU)