Download or read book Fiber matrix Interface Studies on Totally and Partially Bioabsorbable Composite Materials for Internal Fixation of Bone Fractures written by Michael Andrew Slivka and published by . This book was released on 1996 with total page 240 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Mechanical Properties Study of Totally and Partially Biodegradable Composite Materials for Internal Fixation of Bone Fractures written by Ida Ariani Adisaputro and published by . This book was released on 1995 with total page 96 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Engineered Interfaces in Fiber Reinforced Composites written by Jang-Kyo Kim and published by Elsevier. This book was released on 1998-10-21 with total page 416 pages. Available in PDF, EPUB and Kindle. Book excerpt: The study and application of composite materials are a truly interdisciplinary endeavour that has been enriched by contributions from chemistry, physics, materials science, mechanics and manufacturing engineering. The understanding of the interface (or interphase) in composites is the central point of this interdisciplinary effort. From the early development of composite materials of various nature, the optimization of the interface has been of major importance. While there are many reference books available on composite materials, few of them deal specifically with the science and mechanics of the interface of fiber reinforced composites. Further, many recent advances devoted solely to research in composite interfaces have been scattered in a variety of published literature and have yet to be assembled in a readily accessible form. To this end this book is an attempt to bring together recent developments in the field, both from the materials science and mechanics perspective, in a single convenient volume.The central theme of the book is tailoring the interface properties to optimise the mechanical peformance and structural integrity of composites with enhanced strength/stiffness and fracture toughness (or specific fracture resistance). It deals mainly with interfaces in advanced composites made from high performance fibers, such as glass, carbon, aramid, ultra high modulus polyethylene and some inorganic (e.g. B/W, A12O3, SiC) fibers, and matrix materials encompassing polymers, metals/alloys and ceramics. The book is intended to provide a comprehensive treatment of composite interfaces in such a way that it should be of interest to materials scientists, technologists and practising engineers, as well as graduate students and their supervisors in advanced composites. We hope that this book will also serve as a valuable source of reference to all those involved in the design and research of composite interfaces.The book contains eight chapters of discussions on microstructure-property relationships with underlying fundamental mechanics principles. In Chapter 1, an introduction is given to the nature and definition of interfaces in fiber reinforced composites. Chapter 2 is devoted to the mechanisms of adhesion which are specific to each fiber-matrix system, and the physio-chemical characterization of the interface with regard to the origin of adhesion. The experimental techniques that have been developed to assess the fiber-matrix interface bond quality on a microscopic scale are presented in Chapter 3, along with the techniques of measuring interlaminar/intralaminar strengths and fracture toughness using bulk composite laminates. The applicability and limitations associated with loading geometry and interpretation of test data are compared. Chapter 4 presents comprehensive theoretical analyses based on shear-lag models of the single fiber composite tests, with particular interest being placed on the interface debond process and the nature of the fiber-matrix interfacial bonding. Chapter 5 is devoted to reviewing current techniques of fiber surface treatments which have been devised to improve the bond strength and the fiber-matrix compatibility/stability during the manufacturing processes of composites. The micro-failure mechanisms and their associated theories of fracture toughness of composites are discussed in Chapter 6. The roles of the interface and its effects on the mechanical performance of fiber composites are addressed from several viewpoints. Recent research efforts to augment the transverse and interlaminar fracture toughness by means of controlled interfaces are presented in Chapters 7 and 8.
Download or read book Fiber Matrix and Interface Properties written by Christopher J. Spragg and published by ASTM International. This book was released on 1996 with total page 206 pages. Available in PDF, EPUB and Kindle. Book excerpt: Emphasizing fiber-matrix adhesion and its characterization in composite materials, reports results from applying the most commonly used test methods, such as fragmentation, pull-out, and indentation, to high-performance composites and their constituents. The 13 papers were presented at a symposium i
Download or read book Totally Bioresorbable Composites Systems for Internal Fixation of Bone Fractures written by Michel Vert and published by . This book was released on 1986 with total page 13 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Silk Fibroin and Hydroxyapatite Composites for Bioresorbable Bone Fixation Devices written by Bryant Heimbach and published by . This book was released on 2019 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Every year there are approximately 9 million bone fractures in the United States, and 30% of these require an internal fixation device to help heal. Currently, the gold standard for fixation devices relies on the use of metals because of their high mechanical properties and bioinertness. However, metal implants often require a second surgery to remove them because they cause stress shielding and metal ion leaching. Current bioresorbable fixation devices on the market have poor mechanical properties and are limited to use in non-load-bearing applications (i.e. maxillofacial fractures). As such, there remains a gap in the fracture fixation devices on the market, where a bioresorbable, high-performance device could provide the mechanical stability of metal devices, while safely degrading in vivo. The present study focuses on the development of such a device by fabricating a composite material containing both long-fiber and particle reinforcement. Using novel processing techniques, a composite consisting of PLLA fibers, HA nanorods, and PCL matrix was fabricated and had a bending modulus and strength of 9.2 Gpa and 187 MPa, respectively. To increase the mechanical properties, statistically designed experiments (DOE) were employed to home in on an ideal material composition of the composite material, resulting in the use of SF fibers, HA nanowhiskers, and a PLA matrix. The final composite possessed a bending modulus and strength of 21.3 GPa and 531 MPa, respectively. This composite material was formed into a curved device and contained screw holes, resembling current metal fixation plates. These devices underwent an accelerated 8-week in vitro degradation study, in which the samples lost a total of 5 wt%. Additionally, cell proliferation studies showed cells increase proliferation through 7 days of culturing on the plates, and a cell viability assay revealed the samples have good in vitro biocompatibility after 14 days of culturing. Overall, the mechanical properties, degradation trend, and biocompatibility of the fabricated composites in this study show great promise for future use as a degradable load-bearing bone fixation device, in which in vivostudies will be needed to verify the efficacy of the composite material as a bone fixation device.
Download or read book Interface Engineering of Natural Fibre Composites for Maximum Performance written by Nikolaos E Zafeiropoulos and published by Elsevier. This book was released on 2011-02-26 with total page 433 pages. Available in PDF, EPUB and Kindle. Book excerpt: One of the major reasons for composite failure is a breakdown of the bond between the reinforcement fibres and the matrix. When this happens, the composite loses strength and fails. By engineering the interface between the natural fibres and the matrix, the properties of the composite can be manipulated to give maximum performance. Interface engineering of natural fibre composites for maximum performance looks at natural (sustainable) fibre composites and the growing trend towards their use as reinforcements in composites.Part one focuses on processing and surface treatments to engineer the interface in natural fibre composites and looks in detail at modifying cellulose fibre surfaces in the manufacture of natural fibre composites, interface tuning through matrix modification and preparation of cellulose nanocomposites. It also looks at the characterisation of fibre surface treatments by infrared and raman spectroscopy and the effects of processing and surface treatment on the interfacial adhesion and mechanical properties of natural fibre composites. Testing interfacial properties in natural fibre composites is the topic of part two which discusses the electrochemical characterisation of the interfacial properties of natural fibres, assesses the mechanical and thermochemical properties and moisture uptake behaviour of natural fibres and studies the fatigue and delamination of natural fibre composites before finishing with a look at Raman spectroscopy and x-ray scattering for assessing the interface in natural fibre compositesWith its distinguished editor and international team of contributors Interface engineering of natural fibre composites for maximum performance is an invaluable resource to composite manufacturers and developers, materials scientists and engineers and anyone involved in designing and formulating composites or in industries that use natural fibre composites. - Examines characterisation of fibre surface treatments by infrared and raman spectroscopy and the effects of processing and surface treatment - Reviews testing interfacial properties in natural fibre composites including the electrochemical characterisation of the interfacial properties of natural fibres - Assesses the mechanical and thermochemical properties and moisture uptake behaviour of natural fibres and studies the fatigue and delamination of natural fibre composites
Download or read book Biofiber Reinforcements in Composite Materials written by Omar Faruk and published by Elsevier. This book was released on 2014-09-25 with total page 775 pages. Available in PDF, EPUB and Kindle. Book excerpt: Natural fiber-reinforced composites have the potential to replace synthetic composites, leading to less expensive, stronger and more environmentally-friendly materials. This book provides a detailed review on how a broad range of biofibers can be used as reinforcements in composites and assesses their overall performance. The book is divided into five major parts according to the origins of the different biofibers. Part I contains chapters on bast fibers, Part II; leaf fibers, Part III; seed fibers, Part IV; grass, reed and cane fibers, and finally Part V covers wood, cellulosic and other fibers including cellulosic nanofibers. Each chapter reviews a specific type of biofiber providing detailed information on the sources of each fiber, their cultivation, how to process and prepare them, and how to integrate them into composite materials. The chapters outline current and potential applications for each fiber and discuss their main strengths and weaknesses. - The book is divided into five major parts according to the origins of the different biofibers - bast, leaf, seed; grass, reed and cane fibers, and finally wood, cellulosic and other fibers including cellulosic nanofibers. - This book provides a detailed review on how a broad range of biofibers can be used as reinforcements in composites and assesses their overall performance - The chapters outline current and potential applications for each fiber and discuss their main strengths and weaknesses
Download or read book Fifth World Biomaterials Congress written by and published by . This book was released on 1996 with total page 760 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Mechanics of Load Transfer at the Fiber matrix Interface written by Christos C. Chamis and published by . This book was released on 1972 with total page 76 pages. Available in PDF, EPUB and Kindle. Book excerpt: Methods for measuring and predicting interface bond stresses and interface bond strength are described. Geometric and material variables which influence interface stress and interface bond strength are identified. The dependence of composite fracture surface characteristics on bond strength is illustrated. Parameters for selecting constituents to yield specified interface bond strength are recommended.
Download or read book Natural Fiber Reinforced Biodegradable and Bioresorbable Polymer Composites written by Alan Kin-tak Lau and published by Woodhead Publishing. This book was released on 2017-02-28 with total page 209 pages. Available in PDF, EPUB and Kindle. Book excerpt: Natural Fiber-Reinforced Biodegradable and Bioresorbable Polymer Composites focuses on key areas of fundamental research and applications of biocomposites. Several key elements that affect the usage of these composites in real-life applications are discussed. There will be a comprehensive review on the different kinds of biocomposites at the beginning of the book, then the different types of natural fibers, bio-polymers, and green nanoparticle biocomposites are discussed as well as their potential for future development and use in engineering biomedical and domestic products. Recently mankind has realized that unless the environment is protected, he himself will be threatened by the over consumption of natural resources as well as a substantial reduction in the amount of fresh air produced in the world. Conservation of forests and the optimal utilization of agricultural and other renewable resources like solar, wind, and tidal energy, have become important topics worldwide. With such concern, the use of renewable resources—such as plant and animal-based, fiber-reinforced polymeric composites—are now becoming an important design criterion for designing and manufacturing components for a broad range of different industrial products. Research on biodegradable polymeric composites can contribute, to some extent, to a much greener and safer environment. For example, in the biomedical and bioengineering fields, the use of natural fiber mixed with biodegradable and bioresorbable polymers can produce joint and bone fixtures to alleviate pain in patients. - Includes comprehensive information about the sources, properties, and biodegradability of natural fibers - Discusses failure mechanisms and modeling of natural fibers composites - Analyzes the effectiveness of using natural materials for enhancing mechanical, thermal, and biodegradable properties
Download or read book Interfacial Bonding Characteristics in Natural Fiber Reinforced Polymer Composites written by Senthilkumar Krishnasamy and published by Springer Nature. This book was released on 2024-01-17 with total page 350 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book provides a general overview of the importance of fibre-matrix interfacial bonding characteristics in natural fibre-based composites to obtain optimal material properties for a specific application. Composites materials are prepared by combining fibres and polymers to achieve superior materials properties than those of the individual components. Composite materials are used to produce lightweight components with increased stiffness and strength; their properties can also be tailored for any specific applications. The glass fibre reinforced composites dominate 95% of the thermoplastic and thermoset-based composites. However, the natural fibre reinforced composites can give competition to the glass fibres due to their advantages such as biodegradability, low density, low cost, and good mechanical properties. This book looks into biocomposites and its important aspect of optimization of materials’ performance by fine-tuning the fibre-matrix bonding characteristics. The chapters in the book look at different plant fibres such as kenaf, pineapple leaf, jute, date palm, luffa, cotton, hemp, wood, bamboo, flax, and straw and the different approaches to enhance the fibre-matrix interfacial bonding through physical and/or chemical treatment methods. It demonstrates that the nature of fibre-matrix bonding has a significant effect on the properties such as tensile, flexural, impact, inter-laminar shear strength, moisture absorption, thickness swelling, thermal, chemical, damping, creep, and fatigue. Its content appeals to academics, students, researcher, and scientist who are working in the field to produce biodegradable and recyclable materials in the composite industry.
Download or read book Effect of Reinforcement and Fiber matrix Interface on Dynamic Fracture of Fiber Reinforced Composite Materials written by and published by . This book was released on 1994 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Effect of Reinforcement and Fiber matrix Interface on Dynamic Fracture of Fiber Reinforced Composite Materials written by Sanjeev K. Khanna and published by . This book was released on 1992 with total page 310 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Micromechanics of Fiber Matrix Interface and Fracture of Advanced Composites with Engineered Interfaces written by J-K Kim and published by . This book was released on 1995 with total page 15 pages. Available in PDF, EPUB and Kindle. Book excerpt: An experimental method is presented to achieve high strength and high fracture toughness of polymer matrix composites by means of an organic interlayer between fiber and matrix. Extensive mechanical tests and chemical/morphological analyses are performed with a special emphasis being placed on the fiber-matrix interface to characterize the interfacial bonding and the corresponding failure mechanisms taking place in the composite during fracture. To support the observed experimental results, also presented is a parametric theoretical study based on thermo-mechanics and finite element analyses of the single fiber cylindrical composite model whereby important roles of the interlayer are evaluated in controlling the stress transfer, debonding process and the generation of thermal residual stresses. In light of the foregoing study, three concepts of engineered interface are proposed and their practical implications discussed. They include weak interface-bond layer, microductile/compliant layer and compensating layer.
Download or read book Fracture Failure Analysis of Fiber Reinforced Polymer Matrix Composites written by Sanjay Mavinkere Rangappa and published by Springer. This book was released on 2022-04-21 with total page 212 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book presents a unified approach to fracture behavior of natural and synthetic fiber-reinforced polymer composites on the basis of fiber orientation, the addition of fillers, characterization, properties and applications. In addition, the book contains an extensive survey of recent improvements in the research and development of fracture analysis of FRP composites that are used to make higher fracture toughness composites in various applications.The FRP composites are an emerging area in polymer science with many structural applications. The rise in materials failure by fracture has forced scientists and researchers to develop new higher strength materials for obtaining higher fracture toughness. Therefore, further knowledge and insight into the different modes of fracture behavior of FRP composites are critical to expanding the range of their application.
Download or read book Advanced Fibers and Composites for Elevated Temperatures written by Iqbal Ahmad and published by . This book was released on 1980 with total page 272 pages. Available in PDF, EPUB and Kindle. Book excerpt:
