Advanced non-linear modelling of the electromechanical effective properties of Macro Fibre Composies and design of a directional dynamic actuation device

SCHEME: CORE

CALL: 2008

DOMAIN: MS - New Functional and Intelligent Materials and Surfaces

FIRST NAME: Houssein

LAST NAME: Nasser

INDUSTRY PARTNERSHIP / PPP: No

INDUSTRY / PPP PARTNER:

HOST INSTITUTION: LIST

KEYWORDS: Macro fibre composites

START: 2009-02-01

END: 2012-01-31

WEBSITE: https://www.list.lu/

Submitted Abstract

Noise and vibration are among the most significant issues for National and European community citizens.The growth in public awareness and expectations of environmental performance has led industries tofocus their attention on the potential impacts arising from noise and vibration of structures and how tocontrol and reduce them. The research proposed here seeks to exploit properties of piezoelectric materialsto develop compact, inherently directional dynamic sensing and actuation devices. The motivation forthis line of investigation includes applications in structural health monitoring and active noise andvibration control. Such device would provide the means to determine the principle components ofvibration-induced strain on a structure, as well as to actuate with essentially arbitrarily controllablecomponents of strain. This will involve estimation of the effective properties of MFCs actuators andsensors, development of a theoretical framework for combining polarization-induced anisotropy in theelastic and piezoelectric coefficients with mechanically induced anisotropy to enable design of thepiezocomposite actuators suitable for piezoelectric device and finally development of a multiaxialsensor/actuator vibration and noise control system. The expected outcomes of this project are the activecontrol (e.g. estimate of the performance of an active damping system) and a new damage detectionconcept.

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