Download or read book Moisture Transport in Polymer Composite Materials written by J.M.P.Q. Delgado and published by Springer Nature. This book was released on 2022-03-19 with total page 109 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book provides valuable information about fiber-reinforced polymer composites, with emphasis in the process of water absorption by experiments and simulation. In this monograph, we present and discuss emerging topics related to fundamentals, engineering applications, advanced mathematical modeling applied to Fickian and non-Fickian diffusion processes, analytical and computational procedures and experiments on water absorption of polymer composites reinforced by vegetable fibers. The book serves as a comprehensive learning tool for engineers, professionals, and researchers involved in this advanced interdisciplinary field, and as a reference work for both undergraduate and graduate courses.

Download or read book Water Transport in Synthetic Polymers written by Alekseĭ Leonidovich Iordanskiĭ and published by Nova Publishers. This book was released on 2003 with total page 242 pages. Available in PDF, EPUB and Kindle. Book excerpt: Iordanskii (Semenov's Institute of Chemical Physics, RAS, Moscow, Russia) collects the work of Russian and Latvian scientists working on the behavior of water in polymers with different hydrophilicity and morphology, covering academic aspects, experimental procedures and approaches, and practical applications. Some specific topics include modeling of anomal diffusion with fitter software, the molecular arrangement of water associated with poly(N-vinyl pyrrolidone) in the first hydrate shell, moisture sorption and its effect on mechanical properties of polymer materials, and the properties and structure of polymeric composite materials obtained from wood hydrolyzed by the method of steam blasting. Annotation : 2004 Book News, Inc., Portland, OR (booknews.com).

Download or read book Orthotropic and Time dependent Moisture Diffusion Measurements in Polymer Matrix Composites Using Nuclear Reaction Analysis written by Siva P. Pilli and published by . This book was released on 2011 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: This research also interrogates the effect of pressure on diffusion. Test chambers were built to maintain a constant relative humidity of 80% at 60 & deg;C at three different pressures (0.101 MPa, 0.517 MPa and 1.034 MPa) including a liquid water immersion test chamber at 60°C. In this study it was observed that the time to saturation increased with increasing chamber pressure. This was primarily due to the increased maximum moisture content at higher pressures. Liquid immersion of the test samples provided the upper bound for maximum moisture content and a lower bound for time to saturation. The effects of material systems and layups on humidity measurements were also studied using two different polymer composite material systems, Cycom and Toray. Diffusivity results were identical for different layups whereas differences were observed for different material systems. Finally three-dimensional numeric models were developed, using ANSYS, to compare with the measured moisture content. Models incorporating the time-dependent and 3-D diffusion have shown an improved correlation with experiments.

Download or read book Heat Transfer in Polymer Composite Materials written by Nicolas Boyard and published by John Wiley & Sons. This book was released on 2016-03-28 with total page 464 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book addresses general information, good practices and examples about thermo-physical properties, thermo-kinetic and thermo-mechanical couplings, instrumentation in thermal science, thermal optimization and infrared radiation.

Download or read book Impact of Architecture on the Durability of Polymer Composite Materials in Hygrothermal Environments written by Sabarinathan Pushparaj Subramaniyan and published by . This book was released on 2023 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: The central objective of my doctoral research is to shed light on the impact of internal structure on moisture-triggered degradation mechanisms across various scales. In particular, my investigation centers on the kinetics of moisture-induced degradation in two distinct polymer composites: Fiber reinforced polymer composites and Flexible syntactic foam. The initial study involved the creation of computational models using a finite element framework to assess the kinetics of moisture diffusion in impermeable fiber-reinforced polymer composites (FRPCs). The introduction of the tortuosity factor served as a means of quantifying the degree of deviation in the pathway of moisture diffusion resulting from the presence of impermeable reinforcement. Subsequently, a correlation between tortuosity and moisture diffusivity was established, paving the way for future applications of composite design and optimization. The information acquired from the preliminary investigations is leveraged to gain insights into the thermal transport characteristics driven by the moisture diffusion pathway in traditional circular fibers, as well as other fiber cross-sectional shapes such as those of the bean, bi-lobular, and triangular varieties. Finally, The impact of extended moisture exposure on the viscoelastic, thermal transport, and dielectric properties of Flexible syntactic foam has been comprehensively elucidated. This study provides valuable insights into optimizing this material at multiple scales, facilitating the attainment of desired properties.

Download or read book Modeling and Evaluation of Moisture Diffusion in Polymer Composite Materials written by Zhen Huo and published by . This book was released on 2016 with total page 118 pages. Available in PDF, EPUB and Kindle. Book excerpt: "Fiber-reinforced polymer composites have extensive applications due to their high specific strength, improved product performance, low maintenance and design flexibility. However, moisture absorbed by polymer composites during the service life plays a detrimental role in both the integrity and durability of composite structure. It is essential to understand the moisture diffusion behavior and induced damage in polymer matrix composites under varying hygrothermal conditions. In Part I, the moisture diffusion characteristics in hybrid composites using moisture concentration-dependent diffusion method have been investigated. Also, a multi-stage diffusion model was proposed to explain the deviation of moisture diffusion behavior for sandwich composites from classical Fick's law using a time-dependent diffusivity scheme. User-defined subroutines were developed to implement these methods into commercial finite element code. To validate the simulation results, an open-edge moisture diffusion experiment was conducted for sandwich composites composed of woven E-glass fiber-reinforced polyurethane (PU) face sheets and a closed-cell rigid PU foam core. In Part II, the behavior of moisture diffusion and its effects on the mechanical properties of carbon/bismaleimide composites exposed to seawater conditioning at elevated temperatures were investigated. The degradation of mechanical properties due to hygrothermal aging was assessed by conducting short beam shear test and flexural test at three immersion time points. In Part III, the effect of moisture on mechanical performance of PU sandwich composites was investigated. Mechanical property degradation due to moisture absorption was evaluated by conducting compression test of the foam core, flexural test of the laminates, and double cantilever beam Mode-I interfacial fracture test of sandwich composites"--Abstract, page iv.

Download or read book Environmental Degradation of Industrial Composites written by Celine A Mahieux and published by Elsevier. This book was released on 2005-12-14 with total page 323 pages. Available in PDF, EPUB and Kindle. Book excerpt: Thanks to their low density and tailored properties, polymer matrix composites are attractive candidates for a large number of industrial applications ranging from aerospace to transportation and energy. However, the behaviour of polymer-based materials is strongly affected by a number of environmental factors. Environmental Degradation in Industrial Composites provides vital information on the effects of environmental factors such as temperature, liquid and gas exposure, electrical fields and radiations, and how micro- and micromechanical calculations during design and manufacture must take these effects into account. The book concludes with reviews on standard and specific testing methods for the various environmental factors and their combinations, helping mechanical/materials engineers and specifiers to predict possible changes due to environmental conditions. Each chapter is supplemented by industrial case studies to help in the understanding of degradation of composites in real life situations.This book will help you to...* Understand how environmental factors lead to degradation effects in polymer matrix composite structures* Build these factors into calculations when predicting the part performance and lifetime of structures* Compare real-life situations from case studies with your predicted results* Predict probable composite behaviour with greater accuracyThis book will help you to...* Understand how environmental factors lead to degradation effects in polymer matrix composite structures* Build these factors into calculations when predicting the part performance and lifetime of structures* Compare real-life situations from case studies with your predicted results* Predict probable composite behaviour with greater accuracy

Download or read book Aging Effects on Natural Fiber Reinforced Polymer Composites written by Chandrasekar Muthukumar and published by Springer Nature. This book was released on 2022-01-31 with total page 355 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book covers the topic of degradation phenomenon of natural fiber-based composites (NFC) under various aging conditions and proposes suitable solutions to improve the response of natural fiber-reinforced composite to aging conditions such as moisture, seawater, hygrothermal, and natural and accelerated weathering. The information provided by the book plays a vital role in the durability and shelf life of the composites as well as broadening the scope of outdoor application for natural fiber-based composites. The book will be appropriate for researchers and scientist who are interested in the application of natural fiber composites in various fields.

Download or read book Industrial and Technological Applications of Transport in Porous Materials written by J.M.P.Q. Delgado and published by Springer Science & Business Media. This book was released on 2013-08-17 with total page 286 pages. Available in PDF, EPUB and Kindle. Book excerpt: The purpose of this book, Industrial and Technological Applications of Transport in Porous Materials, is to provide a collection of recent contributions in the field of heat and mass transfer in porous media and their industrial and technological applications. The main benefit of the book is that it discusses some of the most important topics related to transport phenomenon in engineering and their future applications. It includes a set of new technological applications in the field of heat and mass transfer phenomena in a porous medium domain, such as, drying technology, filtration, infrared thermography, energy, recycling, etc. At the same time, these topics will be going to the encounter of a variety of scientific and engineering disciplines, such as chemical, civil, agricultural, mechanical engineering, etc. The book is divided in several chapters that intend to be a resume of the current state of knowledge for benefit of professional colleagues.

Download or read book Proceedings of the American Society for Composites 2014 Twenty ninth Technical Conference on Composite Materials written by Hyonny Kim and published by DEStech Publications, Inc. This book was released on 2014-09-17 with total page 3583 pages. Available in PDF, EPUB and Kindle. Book excerpt: New and not previously published U.S. and international research on composite and nanocomposite materialsFocus on health monitoring/diagnosis, multifunctionality, self-healing, crashworthiness, integrated computational materials engineering (ICME), and moreApplications to aircraft, armor, bridges, ships, and civil structures This fully searchable CD-ROM contains 270 original research papers on all phases of composite materials, presented by specialists from universities, NASA and private corporations such as Boeing. The document is divided into the following sections: Aviation Safety and Aircraft Structures; Armor and Protection; Multifunctional Composites; Effects of Defects; Out of Autoclave Processing; Sustainable Processing; Design and Manufacturing; Stability and Postbuckling; Crashworthiness; Impact and Dynamic Response; Natural, Biobased and Green; Integrated Computational Materials Engineering (ICME); Structural Optimization; Uncertainty Quantification; NDE and SHM Monitoring; Progressive Damage Modeling; Molecular Modeling; Marine Composites; Simulation Tools; Interlaminar Properties; Civil Structures; Textiles. The CD-ROM displays figures and illustrations in articles in full color along with a title screen and main menu screen. Each user can link to all papers from the Table of Contents and Author Index and also link to papers and front matter by using the global bookmarks which allow navigation of the entire CD-ROM from every article. Search features on the CD-ROM can be by full text including all key words, article title, author name, and session title. The CD-ROM has Autorun feature for Windows 2000 or higher products and can also be used with Macintosh computers. The CD includes the program for Adobe Acrobat Reader with Search 11.0. One year of technical support is included with your purchase of this product.

Download or read book Fluid Effects in Polymers and Polymeric Composites written by Y. Jack Weitsman and published by Springer Science & Business Media. This book was released on 2011-11-18 with total page 189 pages. Available in PDF, EPUB and Kindle. Book excerpt: Fluid Effects in Polymers and Polymeric Composites, written by the late Dr. Y. Jack Weitsman, addresses the wide range of parameters that affect the interaction of fluids with polymers and polymeric composites. The book aims at broadening the scope of available data, mostly limited up to this time to weight-gain recordings of fluid ingress into polymers and composites, to the practical circumstances of fluctuating exposure. Various forms of experimental data are given, in conjunction with theoretical models derived from basic scientific principles, and correlated with severity of exposure conditions and interpreted by means of rationally based theoretical models. The practical implications of the effects of fluids are discussed. The issue of fluid effects on polymers and polymeric composites is of concern to engineers and scientists active in aerospace and naval structures, as an increasing portion of these structures are made of polymeric composites and employ polymeric adhesives as a joining device. While the book is intended for this audience, it will also interest researchers and graduate students interested in the mechanics and materials aspects of this matter.

Download or read book Polymer Permeability written by J. Comyn and published by Springer Science & Business Media. This book was released on 1985-02-28 with total page 400 pages. Available in PDF, EPUB and Kindle. Book excerpt: Polymers are permeable, whilst ceramics, glasses and metals are gener ally impermeable. This may seem a disadvantage in that polymeric containers may allow loss or contamination of their contents and aggressive substances such as water will diffuse into polymeric struc tures such as adhesive joints or fibre-reinforced composites and cause weakening. However, in some cases permeability is an advantage, and one particular area where this is so is in the use of polymers in drug delivery systems. Also, without permeable polymers, we would not enjoy the wide range of dyed fabrics used in clothing and furnishing. The fundamental reason for the permeability of polymers is their relatively high level of molecular motion, a factor which also leads to their high levels of creep in comparison with ceramics, glasses and metals. The aim of this volume is to examine some timely applied aspects of polymer permeability. In the first chapter basic issues in the mathema tics of diffusion are introduced, and this is followed by two chapters where the fundamental aspects of diffusion in polymers are presented. The following chapters, then, each examine some area of applied science where permeability is a key issue. Each chapter is reasonably self-contained and intended to be informative without frequent outside reference. This inevitably leads to some repetition, but it is hoped that this is not excessive.

Download or read book High Modulus Fiber Composites in Ground Transportation and High Volume Applications written by Dale W. Wilson and published by ASTM International. This book was released on 1985 with total page 178 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Carbon Nanotube Enhanced Aerospace Composite Materials written by A. Paipetis and published by Springer Science & Business Media. This book was released on 2012-09-14 with total page 381 pages. Available in PDF, EPUB and Kindle. Book excerpt: The well documented increase in the use of high performance composites as structural materials in aerospace components is continuously raising the demands in terms of dynamic performance, structural integrity, reliable life monitoring systems and adaptive actuating abilities. Current technologies address the above issues separately; material property tailoring and custom design practices aim to the enhancement of dynamic and damage tolerance characteristics, whereas life monitoring and actuation is performed with embedded sensors that may be detrimental to the structural integrity of the component. This publication explores the unique properties of carbon nanotubes (CNT) as an additive in the matrix of Fibre Reinforced Plastics (FRP), for producing structural composites with improved mechanical performance as well as sensing/actuating capabilities. The successful combination of the CNT properties and existing sensing actuating technologies leads to the realization of a multifunctional FRP structure. The current volume presents the state of the art research in this field. The contributions cover all the aspects of the novel composite systems, i.e. modeling from nano to macro scale, enhancement of structural efficiency, dispersion and manufacturing, integral health monitoring abilities, Raman monitoring, as well as the capabilities that ordered carbon nanotube arrays offer in terms of sensing and/or actuating in aerospace composites.

Download or read book Composite Materials written by Amit Sachdeva and published by CRC Press. This book was released on 2021-02-12 with total page 305 pages. Available in PDF, EPUB and Kindle. Book excerpt: Composite Materials: Properties, Characterisation, and Applications provides an in-depth description of the synthesis, properties, and various characterisation techniques used for the study of composite materials. Covers applications and simulation tests of these advanced materials Presents real-world examples for demonstration Discusses surface, thermal, and electrical characterisation techniques Covers composites for use as sensors Aimed at industry professionals and researchers, this book offers readers thorough knowledge of the fundamentals as well as advanced level techniques involved in composite material characterisation, development, and applications.

Download or read book Composite Materials Research Progress written by Lucas P. Durand and published by Nova Publishers. This book was released on 2008 with total page 330 pages. Available in PDF, EPUB and Kindle. Book excerpt: Composite materials are engineered materials made from two or more constituent materials with significantly different physical or chemical properties and which remain separate and distinct on a macroscopic level within the finished structure. Fibre Reinforced Polymers or FRPs include Wood comprising (cellulose fibers in a lignin and hemicellulose matrix), Carbon-fiber reinforced plastic or CFRP, Glass-fibre reinforced plastic or GFRP (also GRP). If classified by matrix then there are Thermoplastic Composites, short fiber thermoplastics, long fibre thermoplastics or long fibre reinforced thermoplastics There are numerous thermoset composites, but advanced systems usually incorporate aramid fibre and carbon fibre in an epoxy resin matrix. Composites can also utilise metal fibres reinforcing other metals, as in Metal matrix composites or MMC. Ceramic matrix composites include Bone (hydroxyapatite reinforced with collagen fibres), Cermet (ceramic and metal) and Concrete. Organic matrix/ceramic aggregate composites include Asphalt concrete, Mastic asphalt, Mastic roller hybrid, Dental composite, Syntactic foam and Mother of Pearl. Chobham armour is a special composite used in military applications. Engineered wood includes a wide variety of different products such as Plywood, Oriented strand board, Wood plastic composite (recycled wood fibre in polyethylene matrix), Pykrete (sawdust in ice matrix), Plastic-impregnated or laminated paper or textiles, Arborite, Formica (plastic) and Micarta. Composite materials have gained popularity (despite their generally high cost) in high-performance products such as aerospace components (tails, wings , fuselages, propellors), boat and scull hulls, and racing car bodies. More mundane uses include fishing rods and storage tanks. This new book presents the latest research from around the world.

Download or read book Computational Modeling of Polymer Composites written by Samit Roy and published by CRC Press. This book was released on 2013-09-05 with total page 296 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book provides a better understanding of the theories associated with finite element models of elastic and viscoelastic response of polymers and polymer composites. It covers computational modeling and life-prediction of polymers and polymeric composites in aggressive environments. It begins with a review of mathematical preliminaries, equations of anisotropic elasticity, and then presents finite element analysis of viscoelasticity and the diffusion process in polymers and polymeric composites. The book provides a reference for engineers and scientists and can be used as a textbook in graduate courses.