Etude Et Simulation De La Conductivite Thermique De Materiaux Composites A Matrice Organique Chargee Et Renforcee De Fibres De Carbone Pitch

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Flexoelectricity in Liquid Crystals

Author : Agnes Buka
Publisher : World Scientific
ISBN 13 : 1848167997
Total Pages : 299 pages
Book Rating : 4.8/5 (481 download)

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Book Synopsis Flexoelectricity in Liquid Crystals by : Agnes Buka

Download or read book Flexoelectricity in Liquid Crystals written by Agnes Buka and published by World Scientific. This book was released on 2013 with total page 299 pages. Available in PDF, EPUB and Kindle. Book excerpt: The book intends to give a state-of-the-art overview of flexoelectricity, a linear physical coupling between mechanical (orientational) deformations and electric polarization, which is specific to systems with orientational order, such as liquid crystals. Chapters written by experts in the field shed light on theoretical as well as experimental aspects of research carried out since the discovery of flexoelectricity. Besides a common macroscopic (continuum) description the microscopic theory of flexoelectricity is also addressed. Electro-optic effects due to or modified by flexoelectricity as well as various (direct and indirect) measurement methods are discussed. Special emphasis is given to the role of flexoelectricity in pattern-forming instabilities. While the main focus of the book lies in flexoelectricity in nematic liquid crystals, peculiarities of other mesophases (bent-core systems, cholesterics, and smectics) are also reviewed. Flexoelectricity has relevance to biological (living) systems and can also offer possibilities for technical applications. The basics of these two interdisciplinary fields are also summarized.

The London Underground and the public-private partnership agreements

Author : Great Britain: Parliament: House of Commons: Transport Committee
Publisher : The Stationery Office
ISBN 13 : 9780215038319
Total Pages : 134 pages
Book Rating : 4.0/5 (383 download)

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Book Synopsis The London Underground and the public-private partnership agreements by : Great Britain: Parliament: House of Commons: Transport Committee

Download or read book The London Underground and the public-private partnership agreements written by Great Britain: Parliament: House of Commons: Transport Committee and published by The Stationery Office. This book was released on 2008-01-25 with total page 134 pages. Available in PDF, EPUB and Kindle. Book excerpt: This report from the Transport Committee, examines London Underground and the Public-Private Partnership Agreements. The Government originally announced proposals for modernising the London Underground network system via Public-Private Partnership (PPP) agreements in 1998. Three contracts were drawn up with: (i) Tube Lines for the maintenance and renewal of the Jubilee, Piccadilly and Northern Lines; (ii) with Metronet Rail BVC for the maintenance and renewal of the Bakerloo, Central, Victoria & Waterloo & City Lines; (iii) with Metronet Rail SSL, responsible for the maintenance and renewal of the "sub-surface lines": the Circle, District, Hammersmith & City, Metropolitan & East London Lines. These PPP Agreements, 30 years in duration, were arrangements to maintain, renew and upgrade parts of London Underground by private sector infrastructure companies (Infracos), whilst London Underground is responsible for services to customers. The PPP Agreements also set out a performance-related incentive and penalty scheme to remunerate the Infracos for the improvements they make to the network. In May 2007, Metronet admitted an overspend of £1 billion and was refused access to loan facilities by the banks. It then made a reference to the PPP Arbiter, which in turn triggered an Extraordinary Review (which occurs when extra costs are incurred above the level allowed for the bid). Metronet put in a bid for £551m but the PPP Arbiter provisionally concluded that a sum of £121m was appropriate. Metronet subsequently went into administration on 18 July 2007. The report sets out a number of conclusions and recommendations, including: contracts that were supposed to deliver 35 station upgrades, in fact delivered only 14, 40% of the requirement; stations that were supposed to cost Metronet SSL £2m, cost £7.5m, with only 65% of schedule track renewal accomplished; the Committee criticises the consequences of the imposition of PPP on Transport for London, as a "lamentable state of affairs", with the future of most of London Underground's upgrade and maintenance work in doubt; the Committee states, that the Government should remember the failure of Metronet before it considers entering similar arrangements; that the Government should publish a candid analysis of the events preceding Metronet's collapse and its consequences; the Committee believe that the PPP model was flawed and probably inferior to traditional public-sector management; that the Government needs to prioritise transparency and clarity to taxpayers and ensure that any future contracts result in clear accountability.

Nonlinear Optical Materials

Author : Jerome V. Moloney
Publisher : Springer Science & Business Media
ISBN 13 : 9780387985817
Total Pages : 270 pages
Book Rating : 4.9/5 (858 download)

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Book Synopsis Nonlinear Optical Materials by : Jerome V. Moloney

Download or read book Nonlinear Optical Materials written by Jerome V. Moloney and published by Springer Science & Business Media. This book was released on 1998-08-13 with total page 270 pages. Available in PDF, EPUB and Kindle. Book excerpt: Mathematical methods play a significant role in the rapidly growing field of nonlinear optical materials. This volume discusses a number of successful or promising contributions. The overall theme of this volume is twofold: (1) the challenges faced in computing and optimizing nonlinear optical material properties; and (2) the exploitation of these properties in important areas of application. These include the design of optical amplifiers and lasers, as well as novel optical switches. Research topics in this volume include how to exploit the magnetooptic effect, how to work with the nonlinear optical response of materials, how to predict laser-induced breakdown in efficient optical devices, and how to handle electron cloud distortion in femtosecond processes.

Carbon-Carbon Materials and Composites

Author : John D. Buckley
Publisher : William Andrew
ISBN 13 : 0815516290
Total Pages : 295 pages
Book Rating : 4.8/5 (155 download)

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Book Synopsis Carbon-Carbon Materials and Composites by : John D. Buckley

Download or read book Carbon-Carbon Materials and Composites written by John D. Buckley and published by William Andrew. This book was released on 2012-12-02 with total page 295 pages. Available in PDF, EPUB and Kindle. Book excerpt: The major areas of carbon-carbon materials and composites are described in this comprehensive volume. It presents data and technology on the materials and structures developed for the production of carbon-carbon materials and composites. The text is composed of papers by 13 noted authors in their areas of expertise relating to the processes and production of these material systems and structures. The subject matter in the book is arranged to lead the reader through materials processing, fabrication, structural analysis, and applications of typical carbon-carbon products. The information provided includes: fiber technology, matrix material, design of composite structures, manufacturing techniques, engineering mechanics, protective coatings, and structural applications using carbon-carbon materials and composites.

Carbon Fiber Composites

Author : Deborah Chung
Publisher : Elsevier
ISBN 13 : 0080500730
Total Pages : 229 pages
Book Rating : 4.0/5 (85 download)

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Book Synopsis Carbon Fiber Composites by : Deborah Chung

Download or read book Carbon Fiber Composites written by Deborah Chung and published by Elsevier. This book was released on 2012-12-02 with total page 229 pages. Available in PDF, EPUB and Kindle. Book excerpt: In Carbon Fiber Composites, the reader is introduced to a wide range of carbon fiber composites, including polymer-matrix, metal matrix, carbon-matrix, ceramic-matrix and hybrid composites. The subject is examined in a tutorial fashion, so that no prior knowledge of the field is required. In contrast to other books on composites, this book emphasizes materials rather than mechanics, as the prominence of composite materials has resulted from their increased presence in applications other than structure. - Provides up-to-date information on the entire spectrum of carbon fiber composites - Emphasizes processing as the foundation of composite materials development - Addresses the processing, properties and applications of each type of material systematically

Fibers and Composites

Author : Pierre Delhaes
Publisher : CRC Press
ISBN 13 : 0203166787
Total Pages : 260 pages
Book Rating : 4.2/5 (31 download)

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Book Synopsis Fibers and Composites by : Pierre Delhaes

Download or read book Fibers and Composites written by Pierre Delhaes and published by CRC Press. This book was released on 2003-05-15 with total page 260 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book is devoted to advanced composite materials based on carbon fibers issued from different precursors and various matrices. Written by internationally recognized specialists, Fibers and Composites is divided into three main parts. The first presents an alternative way to process and prepare carbon fibers issued from either natural or art

Comportement mécanique des composites à matrice organique

Author : Marco Gigliotti
Publisher : ISTE Group
ISBN 13 : 1784052833
Total Pages : 123 pages
Book Rating : 4.7/5 (84 download)

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Book Synopsis Comportement mécanique des composites à matrice organique by : Marco Gigliotti

Download or read book Comportement mécanique des composites à matrice organique written by Marco Gigliotti and published by ISTE Group. This book was released on 2017-09-01 with total page 123 pages. Available in PDF, EPUB and Kindle. Book excerpt: L’utilisation des composites à matrice organique pour des applications structurales à haute température est de plus en plus souvent envisagée, notamment dans certaines zones de turbomachines aéronautiques. A cette fin, il devient nécessaire d’analyser les effets du vieillissement thermo-oxydant sur le comportement mécanique d’un polymère et des composites associés. Cet ouvrage met en relief des méthodologies expérimentales originales qui permettent, par analyse inverse, de développer et d’identifier une loi de comportement du polymère dépendant du vieillissement ainsi que les déformations d’origine chimique. Ces informations sont utilisées pour le calcul des contraintes internes induites par un vieillissement thermo-oxydant dans des composites unidirectionnels à fibres continues de carbone. Comportement mécanique des composites à matrice organique se différencie des autres ouvrages par son approche. Il examine des lois de comportement thermomécaniques locales dépendant de l’oxydation grâce à l’emploi d’essais couplés et non couplés à l’échelle microscopique. Il présente des modèles originaux afin d'intégrer toute la richesse de la phénoménologie observée expérimentalement, grâce à l'emploi de variables internes correctement choisies.

Carbon Fibers

Author : Soo-Jin Park
Publisher : Springer
ISBN 13 : 9401794782
Total Pages : 337 pages
Book Rating : 4.4/5 (17 download)

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Book Synopsis Carbon Fibers by : Soo-Jin Park

Download or read book Carbon Fibers written by Soo-Jin Park and published by Springer. This book was released on 2014-10-08 with total page 337 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book contains eight chapters that discuss the manufacturing methods, surface treatment, composite interfaces, microstructure-property relationships with underlying fundamental physical and mechanical principles, and applications of carbon fibers and their composites. Recently, carbon-based materials have received much attention for their many potential applications. The carbon fibers are very strong, stiff, and lightweight, enabling the carbon materials to deliver improved performance in several applications such as aerospace, sports, automotive, wind energy, oil and gas, infrastructure, defense, and semiconductors. However, the use of carbon fibers in cost-sensitive, high-volume industrial applications is limited because of their relatively high costs. However, its production is expected to increase because of its widespread use in high-volume industrial applications; therefore, the methods used for manufacturing carbon fibers and carbon-fiber-reinforced composites and their structures and characteristics need to be investigated.

Carbon Fibers Filaments and Composites

Author : J.L. Figueiredo
Publisher : Springer Science & Business Media
ISBN 13 : 9401568472
Total Pages : 577 pages
Book Rating : 4.4/5 (15 download)

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Book Synopsis Carbon Fibers Filaments and Composites by : J.L. Figueiredo

Download or read book Carbon Fibers Filaments and Composites written by J.L. Figueiredo and published by Springer Science & Business Media. This book was released on 2013-03-14 with total page 577 pages. Available in PDF, EPUB and Kindle. Book excerpt: Conventional synthetic materials, like metals, ceramics or glass, are usually isotropic substances, and their suitability for structural applications is achieved by morphological design and combination in the macroscopic scale. However, in modem engineering this is often not acceptable. As an alternative, the use of non-homogeneous, anisotropic materials, with significant stiffness and strength only in the directions these mechanical properties are really needed, can lead to enormous material (and weight) savings. This is the case of multiphase systems called composite materials. In these composites, different material parts are added and arranged geometrically, under clearly designed and controlled conditions. Usually, a structure of fibers provides strength and stiffness and a matrix helds them together, whilst providing the geometric form. Carbon fibers are among the high-performance fibers employed in these advanced structural composites, which are profoundly changing many of today's high technology industries. New research and development challenges in this area include upgrading the manufacturing process of fibers and composites, in order to improve characteristics and reduce costs, and modifying the interfacial properties between fibers and matrix, to guarantee better mechanical properties. The interdisciplinary nature of this "new frontier" is obvious, involving chemistry, materials science, chemical and mechanical engineering. Other topics, which more often are treated separately, are also important for the understanding of the processes of fiber production. Carbon filaments is one such topic, as the study of their mechanisms of nucleation and growth is clearly quite relevant to the production of vapour-grown carbon fibers.

Carbon Composites

Author : Deborah D.L. Chung
Publisher : Butterworth-Heinemann
ISBN 13 : 0128028807
Total Pages : 708 pages
Book Rating : 4.1/5 (28 download)

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Book Synopsis Carbon Composites by : Deborah D.L. Chung

Download or read book Carbon Composites written by Deborah D.L. Chung and published by Butterworth-Heinemann. This book was released on 2016-11-08 with total page 708 pages. Available in PDF, EPUB and Kindle. Book excerpt: Carbon Composites: Composites with Carbon Fibers, Nanofibers, and Nanotubes, Second Edition, provides the reader with information on a wide range of carbon fiber composites, including polymer-matrix, metal-matrix, carbon-matrix, ceramic-matrix and cement-matrix composites. In contrast to other books on composites, this work emphasizes materials rather than mechanics. This emphasis reflects the key role of materials science and engineering in the development of composite materials. The applications focus of the book covers both the developing range of structural applications for carbon fiber composites, including military and civil aircraft, automobiles and construction, and non-structural applications, including electromagnetic shielding, sensing/monitoring, vibration damping, energy storage, energy generation, and deicing. In addition to these new application areas, new material in this updated edition includes coverage of cement-matrix composites, carbon nanofibers, carbon matrix precursors, fiber surface treatment, nanocarbons, and hierarchical composites. An ideal source of information for senior undergraduate students, graduate students, and professionals working with composite materials and carbon fibers, this book can be used both as a reference book and as a textbook. Introduces the entire spectrum of carbon fiber composites, including polymer-matrix, metal-matrix, carbon-matrix, ceramic-matrix and cement-matrix composites Systematically sets out the processing, properties, and applications of each type of material Emphasizes processing as the foundation of understanding, manufacturing, and designing with composite materials

Carbon Fibers and Their Composites

Author : Peter Morgan
Publisher : CRC Press
ISBN 13 : 142002874X
Total Pages : 1174 pages
Book Rating : 4.4/5 (2 download)

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Book Synopsis Carbon Fibers and Their Composites by : Peter Morgan

Download or read book Carbon Fibers and Their Composites written by Peter Morgan and published by CRC Press. This book was released on 2005-05-20 with total page 1174 pages. Available in PDF, EPUB and Kindle. Book excerpt: Most literature pertaining to carbon fibers is of a theoretical nature. Carbon Fibers and their Composites offers a comprehensive look at the specific manufacturing of carbon fibers and graphite fibers into the growing surge of diverse applications that include flameproof materials, protective coatings, biomedical and prosthetics application

Carbon Fibres and Their Composites

Author : Erich Fitzer
Publisher : Springer
ISBN 13 :
Total Pages : 320 pages
Book Rating : 4.3/5 (91 download)

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Book Synopsis Carbon Fibres and Their Composites by : Erich Fitzer

Download or read book Carbon Fibres and Their Composites written by Erich Fitzer and published by Springer. This book was released on 1985 with total page 320 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Conduction Heat Transfer Analysis in Composite Materials

Author : Lit S. Han
Publisher :
ISBN 13 :
Total Pages : 158 pages
Book Rating : 4.:/5 (319 download)

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Book Synopsis Conduction Heat Transfer Analysis in Composite Materials by : Lit S. Han

Download or read book Conduction Heat Transfer Analysis in Composite Materials written by Lit S. Han and published by . This book was released on 1980 with total page 158 pages. Available in PDF, EPUB and Kindle. Book excerpt: With anticipated increased use of composite materials in aerospace structures and other applications, thermal properties of composites are needed as essential design information. In the past there was only scanty amount of research effort in thermal analysis of composites, as most of the work has been concerned with their mechanical properties. This report contains results from a rigorous analysis to determine steady-state effective thermal conductivities of fiber-matrix type of composites. The fibers bundled into twos are considered dispersed in a matrix of resin. The dispersion patterns of configurations considered are: (1) uni-directional fibers in a matrix, as the simplest geometry, and (2) 0.90 configuration in which two uni-directional tapes are overlaid at 90 degrees to each other. The method of analysis is to solve a two-region steady-state heat conduction equation either analytically or numerically. The analysis assumes a prior knowledge of the geometry of a composite and the constituents thermal conductivities.

Carbon Fibers

Author : Jean-Baptiste Donnet
Publisher : CRC Press
ISBN 13 : 1482285398
Total Pages : 584 pages
Book Rating : 4.4/5 (822 download)

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Book Synopsis Carbon Fibers by : Jean-Baptiste Donnet

Download or read book Carbon Fibers written by Jean-Baptiste Donnet and published by CRC Press. This book was released on 1998-03-19 with total page 584 pages. Available in PDF, EPUB and Kindle. Book excerpt: "Third Edition offers the latest information on the structural, surface, mechanical, electronic, thermal, and magnetic properties of carbon fibers as well as their manufacture and industrial applications from many of the world's most distinguished specialists in the field. "

The Structural Integrity of Carbon Fiber Composites

Author : Peter W. R Beaumont
Publisher : Springer
ISBN 13 : 3319461206
Total Pages : 954 pages
Book Rating : 4.3/5 (194 download)

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Book Synopsis The Structural Integrity of Carbon Fiber Composites by : Peter W. R Beaumont

Download or read book The Structural Integrity of Carbon Fiber Composites written by Peter W. R Beaumont and published by Springer. This book was released on 2016-11-26 with total page 954 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book brings together a diverse compilation of inter-disciplinary chapters on fundamental aspects of carbon fiber composite materials and multi-functional composite structures: including synthesis, characterization, and evaluation from the nano-structure to structure meters in length. The content and focus of contributions under the umbrella of structural integrity of composite materials embraces topics at the forefront of composite materials science and technology, the disciplines of mechanics, and development of a new predictive design methodology of the safe operation of engineering structures from cradle to grave. Multi-authored papers on multi-scale modelling of problems in material design and predicting the safe performance of engineering structure illustrate the inter-disciplinary nature of the subject. The book examines topics such as Stochastic micro-mechanics theory and application for advanced composite systems Construction of the evaluation process for structural integrity of material and structure Nano- and meso-mechanics modelling of structure evolution during the accumulation of damage Statistical meso-mechanics of composite materials Hierarchical analysis including "age-aware," high-fidelity simulation and virtual mechanical testing of composite structures right up to the point of failure. The volume is ideal for scientists, engineers, and students interested in carbon fiber composite materials, and other composite material systems.

Induction Heating of Carbon-fiber Composites

Author : Bruce Fink
Publisher :
ISBN 13 :
Total Pages : 48 pages
Book Rating : 4.:/5 (612 download)

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Book Synopsis Induction Heating of Carbon-fiber Composites by : Bruce Fink

Download or read book Induction Heating of Carbon-fiber Composites written by Bruce Fink and published by . This book was released on 2000 with total page 48 pages. Available in PDF, EPUB and Kindle. Book excerpt: Heating of continuous carbon-fiber-reinforced polymers (CFRP's) by the application of an alternating magnetic field has been shown to be due to dielectric losses in the polymer. Models that predict thermal generation in these composites are input to a finite element heat-transfer analysis, providing the predicted transient thermal profile in the plane of the laminate. The validity of the global thermal generation model is established through an experimental test matrix in which various specimen configurations are evaluated and compared with theoretical predictions of transient surface temperatures.

Update on Carbon Fibre

Author : Pratima Bajpai
Publisher : Smithers Rapra
ISBN 13 : 1909030252
Total Pages : 154 pages
Book Rating : 4.9/5 (9 download)

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Book Synopsis Update on Carbon Fibre by : Pratima Bajpai

Download or read book Update on Carbon Fibre written by Pratima Bajpai and published by Smithers Rapra. This book was released on 2013-05-29 with total page 154 pages. Available in PDF, EPUB and Kindle. Book excerpt: Carbon fibre is the most preferred lightweight manufacturing material, and is increasingly becoming the material of choice for manufacturers around the world. Its high tensile strength, low weight and low thermal expansion have opened a world of opportunities. Everyone from elite athletes, to car enthusiasts, to the makers of passenger jets, is moving to carbon fibre. The objective of this Update is to bring together available information on the production, properties, application and future of carbon fibres. This Update will be of interest to those involved in the investigation of carbon fibre, carbon-fibre manufacturers, and users of carbon fibres. A further objective is to review the status of carbon fibre-reinforced polymer (CFRP) recycling operations, focusing on state-of-the-art fibre reclamation and re-manufacturing processes, as well as the commercialisation and potential applications of recycled products. This Update will also be of interest to those involved in the recycling of CFRP and manufacturing of composites from recycled CFRP. Students engaged in the fields of chemistry, material science and polymer science will also find this Update very useful.