Natural frequency investigation of an eco-friendly piezoelectric nanocomposite energy harvester using a meshless method

Enhancing both electrical and mechanical properties of active or passive polymers using piezoelectric nanofillers is an attractive option to develop new multifunctional materials, which are usually lead-free piezoelectric materials and can replace traditional PZT-based ones. These novel materials ar...

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Bibliographic Details
Main Authors: Moradi-Dastjerdi, Rasool, Behdinan, Kamran
Format: Conference Proceeding
Language:English
Subjects:
Barium titanates
Bimorphs
Cantilever bridges
Deformation effects
Energy harvesting
Finite element method
Investigations
Lead free
Lead zirconate titanates
Material properties
Mechanical properties
Meshless methods
Multifunctional materials
Nanocomposites
Piezoelectricity
Plates
Polyvinylidene fluorides
Resonant frequencies
Shape functions
Shear deformation
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Summary:Enhancing both electrical and mechanical properties of active or passive polymers using piezoelectric nanofillers is an attractive option to develop new multifunctional materials, which are usually lead-free piezoelectric materials and can replace traditional PZT-based ones. These novel materials are also lightweight and flexible. In this paper, an eco-friendly nanocomposite piezoelectric plate in a bimorph arrangement with the potential application of an energy harvester is suggested. The natural frequencies of these bimorph plates are investigated using a developed meshless solution with MLS shape functions. The bimorph nanocomposite plate is made of two lead-free piezoelectric materials including Polyvinylidene Fluoride (PVDF) as a polymeric matrix and Barium Titanate (BaTiO3) nano-powder as the nano-scale reinforcement. Material properties of the resulting piezoelectric nanocomposite are approximated using Eshelby’s approach. The electromechanical governing eigenfrequency equations of such cantilever and bridge-type energy harvesters are developed by employing a five-independent third-order shear deformation theory (TDST). The effects of plates’ geometrical dimension and nanofiller amount on the natural frequencies of both types of the proposed energy harvesters are investigated.
ISSN:0094-243X
1551-7616
DOI:10.1063/5.0122302