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Advances in Dielectric Elastomer Composites

2025-01-30 Technology & Engineering
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Release : 2025-01-30
Genre : Technology & Engineering
Kind : eBook
Book Rating : 644/5 ( reviews)

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Book Synopsis Advances in Dielectric Elastomer Composites by : Masoud Asgari

Download or read book Advances in Dielectric Elastomer Composites written by Masoud Asgari. This book was released on 2025-01-30. Available in PDF, EPUB and Kindle. Book excerpt: This is a comprehensive guide to dielectric elastomer composites (DECs), which play an integral role in new electromechanically active smart-material technologies. Introducing the basic concepts behind DECs, the book is accessible to readers at all levels. It demonstrates how to implement practical problem-solving methods through nonlinear continuum mechanics and also discusses fibre-reinforced anisotropic DE composites and the electromechanically coupled behaviour of anisotropic fibre-reinforced DEs. Using practical examples throughout, it proposes models which utilise the strain energy function, nonlinear electro-elasticity, and nonlinear continuum mechanics. It presents clear guidelines for creating practical nonlinear finite element code, and introduces the reader to hyperelasticity. The book will be an accessible reference guide for students, researchers and engineers in the field of mechanical engineering, bioengineering, materials science, aeronautics, and robotics.

Dielectric Elastomers as Electromechanical Transducers

2011-09-06 Technology & Engineering
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Release : 2011-09-06
Genre : Technology & Engineering
Kind : eBook
Book Rating : 724/5 ( reviews)

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Book Synopsis Dielectric Elastomers as Electromechanical Transducers by : Federico Carpi

Download or read book Dielectric Elastomers as Electromechanical Transducers written by Federico Carpi. This book was released on 2011-09-06. Available in PDF, EPUB and Kindle. Book excerpt: Dielectric Elastomers as Electromechanical Transducers provides a comprehensive and updated insight into dielectric elastomers; one of the most promising classes of polymer-based smart materials and technologies. This technology can be used in a very broad range of applications, from robotics and automation to the biomedical field. The need for improved transducer performance has resulted in considerable efforts towards the development of devices relying on materials with intrinsic transduction properties. These materials, often termed as "smart or "intelligent, include improved piezoelectrics and magnetostrictive or shape-memory materials. Emerging electromechanical transduction technologies, based on so-called ElectroActive Polymers (EAP), have gained considerable attention. EAP offer the potential for performance exceeding other smart materials, while retaining the cost and versatility inherent to polymer materials. Within the EAP family, "dielectric elastomers, are of particular interest as they show good overall performance, simplicity of structure and robustness. Dielectric elastomer transducers are rapidly emerging as high-performance "pseudo-muscular actuators, useful for different kinds of tasks. Further, in addition to actuation, dielectric elastomers have also been shown to offer unique possibilities for improved generator and sensing devices. Dielectric elastomer transduction is enabling an enormous range of new applications that were precluded to any other EAP or smart-material technology until recently. This book provides a comprehensive and updated insight into dielectric elastomer transduction, covering all its fundamental aspects. The book deals with transduction principles, basic materials properties, design of efficient device architectures, material and device modelling, along with applications. - Concise and comprehensive treatment for practitioners and academics - Guides the reader through the latest developments in electroactive-polymer-based technology - Designed for ease of use with sections on fundamentals, materials, devices, models and applications

Advances in Elastomers II

2013-04-09 Technology & Engineering
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Release : 2013-04-09
Genre : Technology & Engineering
Kind : eBook
Book Rating : 289/5 ( reviews)

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Book Synopsis Advances in Elastomers II by : P. M. Visakh

Download or read book Advances in Elastomers II written by P. M. Visakh. This book was released on 2013-04-09. Available in PDF, EPUB and Kindle. Book excerpt: This is the second volume of a two-volume work which summarizes in an edited format and in a fairly comprehensive manner many of the recent technical research accomplishments in the area of Elastomers. “Advances in Elastomers” discusses the various attempts reported on solving these problems from the point of view of the chemistry and the structure of elastomers, highlighting the drawbacks and advantages of each method. It summarize the importance of elastomers and their multiphase systems in human life and industry, and covers all the topics related to recent advances in elastomers, their blends, IPNs, composites and nanocomposites. This second volume is deals with composites and nanocomposites of elastomers.

Effective Behavior of Dielectric Elastomer Composites

2008 Electronic dissertations
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Release : 2008
Genre : Electronic dissertations
Kind : eBook
Book Rating : /5 ( reviews)

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Book Synopsis Effective Behavior of Dielectric Elastomer Composites by : Lixiu Tian

Download or read book Effective Behavior of Dielectric Elastomer Composites written by Lixiu Tian. This book was released on 2008. Available in PDF, EPUB and Kindle. Book excerpt:

Dielectric Elastomer Composites

2014
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Release : 2014
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Book Synopsis Dielectric Elastomer Composites by : Morteza Hakimi Siboni

Download or read book Dielectric Elastomer Composites written by Morteza Hakimi Siboni. This book was released on 2014. Available in PDF, EPUB and Kindle. Book excerpt: Dielectric Elastomers (DEs) are an interesting class of active materials that can exhibit coupled electrical and mechanical behaviors, for example they can respond to an external electric field by changing their shape or size. This unique property is known as electrostriction, and makes such materials promising candidates for a wide range of practical applications, and therefore there is a need for the design of DEs with enhanced electromechanical couplings. In this work we investigate the possibility of enhancing the electrostriction by making composites consisting of one or more family of filler phases in a soft dielectric host. We use homogenization techniques to obtain estimates for the effective response of such DECs under general electrical and mechanical loading conditions. Next, we use the homogenization estimates developed in this work to investigate the effect of various microstructural parameters on the overall response of DECs. We also study failure of DECs as characterized by dielectric breakdown and/or the onset of material instabilities. Two types of material instabilities will be considered: Loss of Positive Definiteness (LPD) and Loss of Ellipticity (LE). Finally, we attempt an optimal design for the microstructure of DECs with enhanced electromechanical couplings, which are capable of achieving large electrostrictive strains before the failure. Our results show that composites consisting of a very small concentration of rigid circular fibers with vanishing contrast in the dielectric properties can achieve the largest electrostrictive strains before failure. Finally, we attempt to study DECs in the post-bifurcated deformation regime. This is important since after the composite loses strong ellipticity, the solution of the homogenization problem may bifurcate into a lower energy (with generally softer mechanical response) solution, which is different from the pre-bifurcated solutions. This raises the interesting possibility of operating DECs in their softer post-bifurcated deformation regimes to further increase the maximum achievable electrostrictive strains.

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