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Modeling Tensile Behavior Of 3d Woven Composites From High Performance Natural Fibers
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Book Synopsis Modeling Tensile Behavior of 3D Woven Composites From High Performance Natural Fibers by : Hadir Mahmoud Ahmed Mahmoud Eldeeb
Download or read book Modeling Tensile Behavior of 3D Woven Composites From High Performance Natural Fibers written by Hadir Mahmoud Ahmed Mahmoud Eldeeb and published by . This book was released on 2020 with total page 473 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Advanced Weaving Technology by : Yordan Kyosev
Download or read book Advanced Weaving Technology written by Yordan Kyosev and published by Springer Nature. This book was released on 2022-04-02 with total page 629 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book sets the fundamentals of modern weaving at a new level. It contains information for the design of woven structures with complex cross section and multiple layers for modern applications, in the way that leading product developers, professors and researchers are using them now. It starts with the classical weaving principles and patterning and extends these quickly to multilayer structures, produced with single and multiple weft insertion devices, woven structures with complex cross section or direct 3D shape. The engineering methods for design of the structures using modern software and modern algorithms are also explained. Finally, an overview of different application areas is given. The book is written by the world leading experts in their fields and is prepared as learning tool for people interested in modern weaving. Exercises and end-of-chapter summaries will help the reader to check his own knowledge.
Book Synopsis Natural Fibers to Composites by : Yasir Nawab
Download or read book Natural Fibers to Composites written by Yasir Nawab and published by Springer Nature. This book was released on 2022-12-11 with total page 177 pages. Available in PDF, EPUB and Kindle. Book excerpt: Natural fiber composites are a preferred alternative to conventional composites due to their environment-friendly nature. However, their market share is limited due to: a) limited number and quantities of natural fibers available for composites, b) diversity in fibers structure, c) poor mechanical properties of fibers as well as composites, d) susceptibility to microbial attacks, and e) cellulose degradation temperature around 200 deg C, which hinders the development of natural fiber reinforced thermoplastic composites using thermoforming at high temperatures. A number of researchers have contributed to the solution of the problem of poor mechanical properties and issues related to fabrication during the last decade. This book covers these different solutions. The book is divided into two principal themes: a) structure–property relationship: fibers to composites—it includes the discussion on fibers, their surface modifications, variation in the structure of reinforcement, and approaches for the enhancement of properties. b) Fabrication process of composites—it includes the novel approaches used for the development of natural fiber composites using the commingling technique for thermoplastic composites.
Book Synopsis Characterization and Modeling of 3D Woven Composites by :
Download or read book Characterization and Modeling of 3D Woven Composites written by and published by . This book was released on 2003 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: The objectives of this research are: 1. To fully develop the chemical blowing method. 2.characterize 3D woven cellular matrix composites for different fibers and structures. 3. Develop an FEA model simulating elastic properties. 3D woven glass and carbon regular matrix composites (RMC) were fabricated using vacuum assisted resin transfer molding method. 3D woven glass and carbon cellular matrix composites (CMC) were fabricated using chemical foaming method. Fabric preforms were soaked in NaHCO3 solutions. CMC C1 was soaked in NaHCO3 solutions once and CMC C2 was soaked twice. Vacuum assisted resin transfer molding was used to fabricate CMC C1 and C2 after the preforms were dried. Prepreg glass CMC materials P were fabricated using prepreg yarns directly. Density reduction of glass CMC C1 was 11.57%, while that of glass CMC C2 and P was 14.51% and 6.01%, respectively. For carbon composites, higher density reductions were obtained due to lower carbon fiber density. Carbon CMC C1 achieved a density reduction of 25.40% and that of carbon CMC C2 was 24.03%. This reduction was resulted from emptied resin pockets and air bubbles in the yarn bundles. For Glass composites, all the specimens failed under a brittle failure mode in tensile test. Interfacial debonding, fiber breakage and fiber pullout after breakage were the major failure mechanisms. Glass CMC showed a higher specific modulus than RMC. Four-point bending cannot fracture all glass RMC and CMC specimens in warp direction. All other specimens showed a ductile failure behavior. Fiber/matrix debonding, delamination and yarn fracture in tensile side were observed. Strength of the composite suffered from the foaming process. CMC C1 and C2 showed improved specific tangent modulus in warp direction while CMC P did not show improvement. For weft direction specimens, Glass CMC showed significant improvements at 29.31% to 30.26% for C1 and C2 respectively. For low speed impact test, the radial damage expansion ar.
Book Synopsis Woven Composites by : M H Ferri Aliabadi
Download or read book Woven Composites written by M H Ferri Aliabadi and published by World Scientific. This book was released on 2015-02-09 with total page 248 pages. Available in PDF, EPUB and Kindle. Book excerpt: This unique volume presents the latest developments in the field of advanced woven and braided textile composites, with particular emphasis on computational approaches (finite elements, meshfree). Advanced textile composites such as woven, braided, knitted and stitched fabrics are increasingly being used as structural materials in industrial applications due to their efficiency at reinforcing more directions within a single layer and their ability to conform to surfaces with complex curvatures. Furthermore, textile composites provide improved impact resistance, exceptional thermal, fatigue and corrosion resistance, as well as being easier and cheaper to handle and fabricate compared to UD composites.Topics covered in this book include: 2D and 3D plain, twill, satin woven and braided composites, micro-level and macro-level modelling, failure mechanisms, theoretical studies on cryogenic crack behaviour and the specific deformation modes of textile reinforcements, which include the kinematic and hypoelastic models.This book will be particularly relevant to professional engineers, graduate students and researchers interested in composite materials.
Book Synopsis 3D Fibre Reinforced Polymer Composites by : L. Tong
Download or read book 3D Fibre Reinforced Polymer Composites written by L. Tong and published by Elsevier. This book was released on 2002-11-20 with total page 255 pages. Available in PDF, EPUB and Kindle. Book excerpt: Fibre reinforced polymer (FRP) composites are used in almost every type of advanced engineering structure, with their usage ranging from aircraft, helicopters and spacecraft through to boats, ships and offshore platforms and to automobiles, sports goods, chemical processing equipment and civil infrastructure such as bridges and buildlings. The usage of FRP composites continues to grow at an impessive rate as these materials are used more in their existing markets and become established in relatively new markets such as biomedical devices and civil structures. A key factor driving the increased applications of composites over the recent years is the development of new advanced forms of FRP materials. This includes developments in high performance resin systems and new styles of reinforcement, such as carbon nanotubes and nanoparticles. This book provides an up-to-date account of the fabrication, mechanical properties, delamination resistance, impact tolerance and applications of 3D FRP composites. The book focuses on 3D composites made using the textile technologies of weaving, braiding, knitting and stiching as well as by z-pinning.
Book Synopsis Advanced Structural Textile Composites Forming by : Peng Wang
Download or read book Advanced Structural Textile Composites Forming written by Peng Wang and published by Elsevier. This book was released on 2024-08-27 with total page 667 pages. Available in PDF, EPUB and Kindle. Book excerpt: Advanced Structural Textile Composites Forming: Characterization, Modeling, and Simulation comprehensively describes the influence of fiber/fabric architectures and properties on composites forming, along with their deformability and structural optimization, covering the latest advances in the composites forming field. Part one reviews textile reinforcement architectures and discusses the forming behaviors of important 2D and 3D fabrics. Part two discusses numerical models to conduct simulation analysis of different structural composites forming at mesoscopic and macroscopic scales, in particular, 3D preforms with through-the-thickness yarns. Part three looks at the latest developments in the relationship between forming and other steps in composite manufacturing, such as resin injection, and automated fiber placement (AFP) and the effects on certain mechanical properties, such as structural damage and impact resistance. The book will be an essential reference for academic researchers, industrial engineers and materials scientists working with the manufacture and design of fiber-reinforced composite materials. - Describes the influence of the fiber/fabric architectures and properties on composites forming, along with their deformability and structural optimization - Provides numerical modeling and simulation of different fiber-reinforced composites forming at mesoscopic and macroscopic scales, in particular, reinforcements with discontinue fibers, and 3D preforms with through-the-thickness yarns - Discusses cutting edge topics such as resin injection, and automated fiber placement (AFP) and the effects of forming results on mechanical properties such as structural damage and impact resistances
Book Synopsis Continuum Theory of the Mechanics of Fibre-Reinforced Composites by : A.J.M. Spencer
Download or read book Continuum Theory of the Mechanics of Fibre-Reinforced Composites written by A.J.M. Spencer and published by Springer. This book was released on 2014-05-04 with total page 290 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Biodegradable Green Composites by : Susheel Kalia
Download or read book Biodegradable Green Composites written by Susheel Kalia and published by John Wiley & Sons. This book was released on 2016-02-29 with total page 377 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book comprehensively addresses surface modification of natural fibers to make them more effective, cost-efficient, and environmentally friendly. Topics include the elucidation of important aspects surrounding chemical and green approaches for the surface modification of natural fibers, the use of recycled waste, properties of biodegradable polyesters, methods such as electrospinning, and applications of hybrid composite materials.
Book Synopsis Multiscale Modeling of Tensile Behavior of High Performance Fiber-Reinforced Cementitious Composites by : Jingu Kang
Download or read book Multiscale Modeling of Tensile Behavior of High Performance Fiber-Reinforced Cementitious Composites written by Jingu Kang and published by . This book was released on 2016 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: High Performance Fiber-Reinforced Cementitious Composites (HPFRCC) exhibit strain-hardening behavior and multiple cracking up to relatively high levels of tensile strain. Due to its high toughness, and ability to control crack openings, HPFRCC has numerous applications within the civil infrastructure. Most notably, HPFRCC serves as durable construction and repair materials. The objective of this research is the development and validation of lattice models for the analysis of HPFRCC under tensile loadings. The validation exercises include simulations of the finely distributed cracking patterns, the crack counts and widths, and stress-strain responses. This is achieved through a hierarchical, multiscale accounting of the constitutive behaviors of the matrix, fiber, and fiber-matrix interface. The multiscale model is implemented using the concept of a Rigid-Body-Spring Network, in which the individual fibers within the material volume are explicitly modeled. After matrix cracking, the bonded, debonding, and fiber pullout stages are represented according to a micromechanical model. Fibers can be placed within the computational domain irrespective of the discretization of the matrix phase. The approach is computationally efficient since supplementary degrees of freedom are not introduced with the addition of fibers to matrix. An innovative approach is proposed to achieve objective results with respect to discretization of the matrix, in which force transfer along the embedded lengths of fibers is distributed to the associated matrix elements. This is in contrast to models that lump the pullout force at the crack surfaces, which can lead to spurious break-off of matrix particles as the discretization of the matrix is refined. To verify the distributed force approach, simulated pullouts of single fibers are compared with theory and test results for the cases of perfectly-plastic and slip-hardening behavior of the fiber-matrix interface. The process of fiber pullout is simulated and compared to that of a fully discretized fiber modeling approach through the study of pullout forces and conditions local to the fiber embedment lengths. With respect to fracture in multi-fiber composites, the proposed model matches theoretical predictions of post-cracking strength and pullout displacement corresponding to the traction-free condition (i.e. complete fiber pullout). The modeling approach is also applicable to simulating early-age concrete behavior, as observed during restrained ring tests. The steel and concrete rings are represented by an irregular lattice model. The evolution of concrete properties, including stiffness and strength, is based on simple models and experimental results. For simulating cases of steel fiber-reinforced concrete, each fiber is explicitly represented within the concrete ring. The simulation results compare well with the experimental data, including readings from strain gauges attached to the steel rings. As expected, the addition of short fibers prolongs the time to cracking and reduces crack widths. Viability of the model, as a means for analyzing the early-age behavior of FRCC, is discussed. The multiple cracking of HPFRCC specimens produces islands of material interconnected by fiber bridges, which places demands on solution convergence. For this reason, a special event-by-event solution strategy is newly developed in this study. Local to a developing crack, force transfer from the fibers to matrix is updated according to the event-based procedure, resulting in improved numerical stability and the simulation of realistic crack patterns. Crack count and crack size are also simulated for progressively larger levels of tensile strain. Finally, the lattice model is used to simulate the tensile behavior of HPFRCC depending on the distribution of fibers within a specimen. Fibers are distributed according to simple functions or, more realistically, spatially correlated random fields. Simulated cracking behavior is compared with experimental results for increasing levels of tensile strain. It is seen that regions of lower fiber content act as defects that promote larger crack openings and lower resistance to fracture localization. This dissertation presents a computationally efficient approach to representing individual fibers, and their composite behavior, within lattice models of cement-based materials. A hierarchical, multiscale model for HPFRCC is introduced, in which force transfer along each fiber length evolves during crack formation and opening. The proposed spatial representation of the fiber bridging forces provides realistic representations of stress transfer between the fiber and matrix, which is essential for simulating crack openings and crack spacing in HPFRCC.
Book Synopsis Design and Manufacture of Structural Composites by : Lee Harper
Download or read book Design and Manufacture of Structural Composites written by Lee Harper and published by Woodhead Publishing. This book was released on 2022-11-30 with total page 586 pages. Available in PDF, EPUB and Kindle. Book excerpt: Design and Manufacture of Structural Composites provides an overview of the main manufacturing challenges encountered when processing fibre-reinforced composite materials. Composites are unique in that the material is created at the same time as the structure, forming a very close link between the constituents, the manufacturing process and the resulting mechanical performance. This book takes an in-depth look at material choices and the intermediate steps required to convert different fibre and matrix combinations into finished products. It provides an insight into recent developments for each of the manufacturing processes covered, addressing design, cost, rate and mechanical performance. Topics covered include an introduction to composite materials, material preforming and conversion, moulding, digital design and sustainability, which addresses waste reduction, disassembly and fibre recovery. This book has been developed primarily as a teaching resource with contributions from leading experts in the field. The content has evolved from courses given by the authors to mechanical engineering and materials science students, at both undergraduate and postgraduate levels. It also draws upon experience gained during research projects and from leading industry experts. It therefore provides non-specialists with a valuable introduction to composite manufacturing techniques, helping to determine the most suitable manufacturing routes and to understand the challenges associated with the production of high-performance composite components. - Provides an overview of the most common manufacturing routes for fibre reinforced composites, including the influence of the manufacturing route on mechanical properties, production volume and component cost - Discusses recent advances in composite manufacturing, including the use of automation, process simulation, digital factories, and solutions to improve sustainability - Looks at where the composites sector is heading and discusses some of the challenges faced by end-users looking to scale up production and increase the uptake of fibre-reinforced composites for structural applications
Download or read book Applied Mechanics Reviews written by and published by . This book was released on 1992 with total page 348 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Multiscale Textile Preforms and Structures for Natural Fiber Composites by : Mohamad Midani
Download or read book Multiscale Textile Preforms and Structures for Natural Fiber Composites written by Mohamad Midani and published by Elsevier. This book was released on 2023-07-10 with total page 405 pages. Available in PDF, EPUB and Kindle. Book excerpt: Textile reinforcement forms (preforms) play an important role in determining the properties of the final composite and product. The preform formation process provides precise control of the fiber architecture and orientation using a suitable textile manufacturing technique. While the techniques employed for preparing glass and carbon preforms are well-known, there is still a gap in understanding on how to prepare natural preforms for composite reinforcements. Multiscale Textile Preforms and Structures for Natural Fiber Composites will bridge this gap by presenting unified knowledge on the relevant preform preparation techniques and resulting fiber architectures. Emphasis is on the structural parameters of each preform and their effect on the final composite properties. This book assembles information and knowledge on natural fiber reinforcement forms, including conventional forms, such as spun yarn, woven, knitted, nonwoven, braided, and comingled. These are illustrated and classified into one-, two-, and three-dimensional reinforcements. This book also includes information on nonconventional preform formation techniques such as unidirectional tapes, pre-impregnated preforms, spread tows, and tailored fiber placement. - Covers all relevant textile processing technology for natural fiber preforms - Provides academic researchers with a better understanding of recent practices in preparing textile reinforcements for natural fiber composites - Helps practitioners determine how to use natural fiber reinforcements in producing new sustainable and innovative composites
Book Synopsis Structural Textile Design by : Yasir Nawab
Download or read book Structural Textile Design written by Yasir Nawab and published by CRC Press. This book was released on 2017-05-19 with total page 329 pages. Available in PDF, EPUB and Kindle. Book excerpt: The properties of woven and knitted fabrics differ largely due to the path yarn follows in the fabric structure. This path determines the fabric’s physical properties, mechanical properties, and appearance. A slight variation to the design may result in entirely different properties for the fabric. Structural Textile Design provides detailed insight on different types of designs used for the production of woven and knitted fabrics, highlighting the effect design has on a fabric’s properties and applications. With focus on the techniques used to draw designs and produce them on weaving and knitting machines, this book will be of great interest to textile engineers, professionals and graduate students in textile technology and manufacturing.
Book Synopsis Advances in Natural Fibre Composites by : Raul Fangueiro
Download or read book Advances in Natural Fibre Composites written by Raul Fangueiro and published by Springer. This book was released on 2017-10-24 with total page 276 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book presents selected high-quality research papers submitted to ICNF 2017, the 3rd International Conference on Natural Fibers, which was held in Braga, Portugal, on 21–23 June 2017. It discusses the latest research and developments in the field and covers a wide range of topics related to various aspects of natural-fiber composites, such as production and processing of raw materials, surface modification and functionalization, advanced fibrous structures for composites, nano fibers, experimental characterization, modeling and analysis, design and product development, applications, market potential, and environmental impacts. The book presents the latest research work addressing different approaches and techniques to improve processing, performance, functionalities and cost-effectiveness of natural-fibers composites, in order to increase their applications in different industrial sectors such as automobiles, transportation, construction, and sport. & nbsp;
Book Synopsis Behavior of 3-D Orthogonally Woven Composites Under Tensile Loading by : NK. Naik
Download or read book Behavior of 3-D Orthogonally Woven Composites Under Tensile Loading written by NK. Naik and published by . This book was released on 1999 with total page 11 pages. Available in PDF, EPUB and Kindle. Book excerpt: A three-dimensional woven fabric composite strength model is presented for predicting the failure behavior of three-dimensional orthogonally woven composites under on-axis, uniaxial, static tensile loading. The representative unit cell is discretized into sections and elements. The method predicts the stress levels at which secondary failures take place at element level. The effect of secondary failure is considered for further analysis, and the ultimate tensile-failure strength and failure strain are predicted. It is observed that for the same fiber volume fractions, 3-D orthogonally woven composites show a significant increase in through-the-thickness properties without a comparable reduction in in-plane properties. It is found that the assumed cross-sectional geometry of the strand with the same overall fiber volume fraction does not make a significant difference to the elastic and strength properties, and hence a square cross-section can be considered.
Book Synopsis Natural and Synthetic Fiber Reinforced Composites by : Sanjay Mavinkere Rangappa
Download or read book Natural and Synthetic Fiber Reinforced Composites written by Sanjay Mavinkere Rangappa and published by John Wiley & Sons. This book was released on 2022-04-18 with total page 372 pages. Available in PDF, EPUB and Kindle. Book excerpt: Natural and Synthetic Fiber Reinforced Composites Discover a comprehensive exploration of fiber reinforced polymers by an expert team of editors Fiber reinforced polymer (FRP) composites offer several unique properties that make them ideal for use in a wide range of industries, from automotive and aerospace to marine, construction, and co-industrial. In Natural and Synthetic Fiber Reinforced Composites: Synthesis, Properties and Applications, a distinguished team of mechanical engineers delivers a comprehensive overview of fiber reinforced composites. This edited volume includes thorough discussions of glass-, cotton-, and carbon-fiber reinforced materials, as well as the tribological properties and non-structural applications of synthetic fiber composites. Readers will also find practical explorations of the structural evolution, mechanical features, and future possibilities of fiber, textile, and nano-cementitious materials. The physical and chemical properties of cotton fiber-based composites are explored at length, as are the extraordinary mechanical, thermal, electrical, electronic, and field emission properties of carbon nanotubes. This singular book also includes: A thorough discussion of recent advancements in natural fiber reinforced polymer composites, their implications, and the opportunities that arise as a result A comprehensive exploration of the thermal behavior of natural fiber-based composites An insightful review of the literature on sisal fiber with polymer matrices A response to the growing research gap in the existing literature regarding natural fiber-based polymer composites and solutions to address it Perfect for scientists, engineers, professors, and students working in areas involving natural and synthetic reinforced polymers and composites, Natural and Synthetic Fiber Reinforced Composites: Synthesis, Properties and Applications offers a one-of-a-kind resource to help readers understand a critical and rapidly evolving technology.
