Computational homogenization of fibrous piezoelectric materials
TLDR
A numerical approach is developed here for multiscale and multiphysics modeling of thin piezoelectric sheets made of aligned arrays of polymeric nanofibers, manufactured by electrospinning.Abstract:
Flexible piezoelectric devices made of polymeric materials are widely used for micro- and nano-electro-mechanical systems. In particular, numerous recent applications concern energy harvesting. Due to the importance of computational modeling to understand the influence that microscale geometry and constitutive variables exert on the macroscopic behavior, a numerical approach is developed here for multiscale and multiphysics modeling of thin piezoelectric sheets made of aligned arrays of polymeric nanofibers, manufactured by electrospinning. At the microscale, the representative volume element consists in piezoelectric polymeric nanofibers, assumed to feature a piezoelastic behavior and subjected to electromechanical contact constraints. The latter are incorporated into the virtual work equations by formulating suitable electric, mechanical and coupling potentials and the constraints are enforced by using the penalty method. From the solution of the micro-scale boundary value problem, a suitable scale transition procedure leads to identifying the performance of a macroscopic thin piezoelectric shell element.read more
Citations
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Direct-Write Piezoelectric Polymeric Nanogenerator with High Energy Conversion Efficiency
TL;DR: In this paper, near-field electrospinning is used to direct-write poly(vinylidene fluoride) (PVDF) nanofibers with in situ mechanical stretch and electrical poling characteristics to produce piezoelectric properties.
Journal ArticleDOI
On the role of material architecture in the mechanical behavior of knitted textiles
Dani Liu,Daniel Christe,Bahareh Shakibajahromi,Chelsea E. Knittel,Nestor Castaneda,David E. Breen,Genevieve Dion,Antonios Kontsos +7 more
TL;DR: In this article, a numerical simulation of yarn-to-yarn interactions was performed to investigate the effects of yarn structure on deformation localizations and in-and out-of-plane displacements.
Journal ArticleDOI
Energy harvesting from electrospun piezoelectric nanofibers for structural health monitoring of a cable-stayed bridge
TL;DR: In this paper, a new class of piezoelectric textiles is proposed to harvest ambient-induced vibrations of bridge structures using a power generator built using arrays of electrospun piezOElectric nanofibers.
Journal ArticleDOI
Analysis of piezoelectric energy harvester under modulated and filtered white Gaussian noise
Giuseppe Quaranta,Francesco Trentadue,Claudio Maruccio,Giuseppe Carlo Marano,Giuseppe Carlo Marano +4 more
TL;DR: In this paper, a comprehensive method for the electromechanical probabilistic analysis of piezoelectric energy harvesters subjected to modulated and filtered white Gaussian noise (WGN) at the base is proposed.
Journal ArticleDOI
Solution processed high performance piezoelectric eggshell membrane – PVDF layer composite nanogenerator via tuning the interfacial polarization
TL;DR: In this article, a novel high performance natural, biodegradable and flexible eggshell membrane -polyvinylidene difluoride (PVDF) based piezoelectric nanogenerator was developed using a low-temperature solution and spin coating route.
References
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Journal ArticleDOI
Electrospinning of Nanofibers: Reinventing the Wheel?†
Dan Li,Younan Xia +1 more
TL;DR: An overview of electrospinning can be found in this article, where the authors focus on progress achieved in the last three years and highlight some potential applications associated with the remarkable features of electro-spun nanofibers.
Journal ArticleDOI
Nanometre diameter fibres of polymer, produced by electrospinning
Darrell H. Reneker,Iksoo Chun +1 more
TL;DR: More than 20 polymers, including polyethylene oxide, nylon, polyimide, DNA, polyaramid, and polyaniline, have been electrospun in this paper.
Reference EntryDOI
Computational Contact Mechanics
Peter Wriggers,Giorgio Zavarise +1 more
TL;DR: The mathematical structure of the contact formulation for finite element methods is derived on the basis of a continuum description of contact, and several algorithms related to spatial contact search and fulfillment of the inequality constraints at the contact interface are discussed.
Journal ArticleDOI
Direct-Write Piezoelectric Polymeric Nanogenerator with High Energy Conversion Efficiency
TL;DR: Near-field electrospinning is used to direct-write poly(vinylidene fluoride) nanofibers with in situ mechanical stretch and electrical poling characteristics to produce piezoelectric properties, rendering them potentially advantageous for sensing and actuation applications.
Book
Computational Contact Mechanics
TL;DR: In this article, Gauss integration rules are used to solve the contact boundary value problem and small deformation contact problem, and a solution algorithm is proposed for the large deformation problem.