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Author : Jacob Wernik
Publisher :
ISBN 13 :
Total Pages : pages
Book Rating : 4.:/5 (13 download)
Download or read book Multiscale Modeling of Nano-Reinforced Aerospace Adhesives written by Jacob Wernik and published by . This book was released on 2013 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Ankit Srivastav
Publisher :
ISBN 13 :
Total Pages : 280 pages
Book Rating : 4.:/5 (131 download)
Download or read book Multiscale Modeling of Damage Evolution in Nanographene Reinforced Epoxy Polymer Using the Internal State Variable Approach written by Ankit Srivastav and published by . This book was released on 2015 with total page 280 pages. Available in PDF, EPUB and Kindle. Book excerpt: The work done in this thesis aims to improve understanding of advanced multifunctional nanocomposite materials by developing physics-based multi-scale model of nanoparticle reinforced polymer matrix composites in order to accelerate their implementation into aircraft structural applications. These objectives of material development are addressed through the use of computational material modeling. In this regard, a novel technique to model damage and damage evolution in polymer nanocomposites (PNC's) using the Internal State Variable (ISV) approach is proposed. The multi-scale aspects of the nanocomposite are captured by embedding local inhomogeneities and the localized nanoparticle (nanographene) and polymer atom interactions at the interface into a continuum scale model. This approach assumes that the damage evolution is primarily due to changes in non-bonded interactions at the nanoscale (nanoscale-informed damage mechanics model or NIDM model). The NIDM model attempts to (a) capture the stiffness and strength enhancements due to nanoscale reinforcement of graphene by tracking the change in Helmholtz free energy of nanocomposite over baseline polymer and (b) models the stiffness degradation using an internal state variable (ISV) approach based on the fundamental thermodynamic principles of damage mechanics. The unknown coefficients in the NIDM model are obtained by a least squares fit of the PNC stress-strain behavior using molecular dynamics (MD) simulations. It is envisioned that the damage model can be easily incorporated into a FEA algorithm and used by NASA and the aerospace industry for structural design applications.
Author : Shaker A. Meguid
Publisher : Springer
ISBN 13 : 3319316621
Total Pages : 274 pages
Book Rating : 4.3/5 (193 download)
Download or read book Advances in Nanocomposites written by Shaker A. Meguid and published by Springer. This book was released on 2016-06-17 with total page 274 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book introduces nanocomposite materials possessing a broad range of multifunctionality. It elucidates novel and highly original developments from recent research and development of these critical, new engineered materials. The collection examines multiscale modeling, molecular dynamics, atomistic based continuum, synthesis and characterization, condition health monitoring, spectroscopic characterization techniques, self-lubricating materials, and conducting polymers. The volume features the latest efforts of some of the most eminent researchers in the world. Providing a range of perspectives from the laboratory and the field, Advances in Nanocomposites: Modeling and Characterization is ideal for engineers, physicists, and materials scientists in academia and industry.
Author : Tomasz Sadowski
Publisher : Springer
ISBN 13 : 3709118123
Total Pages : 285 pages
Book Rating : 4.7/5 (91 download)
Download or read book Multiscale Modeling of Complex Materials written by Tomasz Sadowski and published by Springer. This book was released on 2014-10-14 with total page 285 pages. Available in PDF, EPUB and Kindle. Book excerpt: The papers in this volume deal with materials science, theoretical mechanics and experimental and computational techniques at multiple scales, providing a sound base and a framework for many applications which are hitherto treated in a phenomenological sense. The basic principles are formulated of multiscale modeling strategies towards modern complex multiphase materials subjected to various types of mechanical, thermal loadings and environmental effects. The focus is on problems where mechanics is highly coupled with other concurrent physical phenomena. Attention is also focused on the historical origins of multiscale modeling and foundations of continuum mechanics currently adopted to model non-classical continua with substructure, for which internal length scales play a crucial role.
Download or read book MULTISCALE MODELING OF CARBON FIBERS/GRAPHENE NANOPLATELETS/EPOXY HYBRID COMPOSITES FOR AEROSPACE APPLICATIONS written by and published by . This book was released on 2020 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Abstract : Significant research effort has been dedicated for decades to improve the mechanical properties of aerospace polymer-based composite materials. Lightweight epoxy-based composite materials have increasingly replaced the comparatively heavy and expensive metal alloys used in aeronautical and aerospace structural components. In particular, carbon fibers (CF)/graphene nanoplatelets (GNP)/epoxy hybrid composites can be used for this purpose owing to their high specific stiffness and strength. Therefore, this work has been completed to design, predict, and optimize the effective mechanical properties of CF/GNP/epoxy composite materials at different length scales using a multiscale modeling approach. The work-flow of modeling involves a first step of using molecular dynamics (MD) with a reactive force field (ReaxFF) to predict the structure and mechanical behavior of the GNP/epoxy materials at the molecular level. A micromechanics approach is then used to model and predict the mechanical properties of the CF/GNP/epoxy hybrid composite at the bulk level. One of the major findings of this study refers to an alignment behavior of phenyl rings in epoxy with the planar GNP surface at the interphase region. This alignment plays an important role to drive the molecular density of epoxy at the interphase and promote the GNP-epoxy interfacial adhesion. The results also validate the use of ReaxFF in MD modeling of such nanocomposites as the predicted properties compare well with experiment. The impact on the mechanical properties of aerospace epoxy materials reinforced with pristine GNP, highly concentrated Graphene Oxide (GO), and Functionalized Graphene Oxide (FGO) has also been investigated in this study. A systematic computational approach to simulate the reinforcing nanoplatelets and probe their influence on the mechanical response of the epoxy matrix at both nanoscale and bulk levels. The nanoscale outcomes indicate a significant degradation in the in-plane elastic and shear moduli of the nanocomposite when introducing large amounts of oxygen and functional groups to the robust sp2 structure of the GNP. However, the wrinkled and rough topology of GO and FGO promotes the nanoplatelet-matrix interlocking mechanism which produces a significant improvement in the out-of-plane shear modulus. In addition, surface functionalization of GNP promotes the nanoplatelet-epoxy interfacial interaction/adhesion significantly which is important for the material toughness. Using micromechanics analysis, the influence of the nanoplatelets content and aspect ratio on the mechanical response of the proposed nanocomposites has also been predicted and validated with experimental data available from the literature. Generally, there is an improvement in the predicted mechanical response of the bulk nanocomposite materials with increasing nanoplatelets content and aspect ratio. The predicted mechanical properties of the nanoplatelet/epoxy nanocomposites are then used to generate hybrid composite models reinforced with unidirectional CF. The micromechanics predictions are used to analyze the reinforcing effect of the proposed nanoplatelets on the unidirectional CF/nanoplatelet/epoxy hybrid composites. Three laminated hybrid composite panels are also modeled and analyzed to address the reinforcing effect of the proposed nanoplatelets on the laminated hybrid composite panels. The predicted mechanical properties of the laminated hybrid composite panels are important in assessing the mechanical performance of in-service structural components.
Author : Antonio Pizzi
Publisher : CRC Press
ISBN 13 : 1498736475
Total Pages : 644 pages
Book Rating : 4.4/5 (987 download)
Download or read book Handbook of Adhesive Technology written by Antonio Pizzi and published by CRC Press. This book was released on 2017-12-15 with total page 644 pages. Available in PDF, EPUB and Kindle. Book excerpt: This classic reference examines the mechanisms driving adhesion, categories of adhesives, techniques for bond formation and evaluation, and major industrial applications. Integrating recent innovation and improved instrumentation, the work offers broad and comprehensive coverage. This edition incorporates several new adhesive classes, new application topics, and recent developments with nanoadhesives and bio-based adhesives. Existing chapters are thoroughly updated, revised, or replaced and authored by top specialists in the field. Abundant figures, tables, and equations appear throughout the work.
Author : Sumit Sharma
Publisher : John Wiley & Sons
ISBN 13 : 1119653622
Total Pages : 322 pages
Book Rating : 4.1/5 (196 download)
Download or read book Mechanics of Particle- and Fiber-Reinforced Polymer Nanocomposites written by Sumit Sharma and published by John Wiley & Sons. This book was released on 2021-03-03 with total page 322 pages. Available in PDF, EPUB and Kindle. Book excerpt: Learn to model your own problems for predicting the properties of polymer-based composites Mechanics of Particle- and Fiber-Reinforced Polymer Nanocomposites: Nanoscale to Continuum Simulations provides readers with a thorough and up-to-date overview of nano, micro, and continuum approaches for the multiscale modeling of polymer-based composites. Covering nanocomposite development, theoretical models, and common simulation methods, the text includes a variety of case studies and scripting tutorials that enable readers to apply and further develop the supplied simulations. The book describes the foundations of molecular dynamics and continuum mechanics methods, guides readers through the basic steps required for multiscale modeling of any material, and correlates the results between the experimental and theoretical work performed. Focused primarily on nanocomposites, the methods covered in the book are applicable to various other materials such as carbon nanotubes, polymers, metals, and ceramics. Throughout the book, readers are introduced to key topics of relevance to nanocomposite materials and structures—supported by journal articles that discuss recent developments in modeling techniques and in the prediction of mechanical and thermal properties. This timely, highly practical resource: Explains the molecular dynamics (MD) simulation procedure for nanofiber and nanoparticle reinforced polymer composites Compares results of experimental and theoretical results from mechanical models at different length scales Covers different types of fibers and matrix materials that constitute composite materials, including glass, boron, carbon, and Kevlar Reviews models that predict the stiffness of short-fiber composites, including the self-consistent model for finite-length fibers, bounding models, and the Halpin-Tsai equation Describes various molecular modeling methods such as Monte Carlo, Brownian dynamics, dissipative particle dynamics, and lattice Boltzmann methods Highlights the potential of nanocomposites for defense and space applications Perfect for materials scientists, materials engineers, polymer scientists, and mechanical engineers, Mechanics of Particle- and Fiber-Reinforced Polymer Nanocomposites is also a must-have reference for computer simulation scientists seeking to improve their understanding of reinforced polymer nanocomposites.
Author : Kevin Schreader
Publisher :
ISBN 13 :
Total Pages : pages
Book Rating : 4.:/5 (776 download)
Download or read book Heterogeneous Nanocomposite Adhesive: Experimental Testing and Computational Multiscale Modeling written by Kevin Schreader and published by . This book was released on 2010 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: This study is focused on a multiscale adhesive used for the investigation of bone bonding applications. Additionally hydroxyapatite nanoparticles were added to the adhesive to create a composite in attempts to enhance both the mechanical and biological properties. One of the main objectives was creating an adhesive system that is tailored to the biological environment in which it must operate. A solid adhesive layer as found in most engineering applications would be counterproductive to the bone healing process and thus an alternative solution was sought. A preliminary cell culture demonstrated that a polyurethane based adhesive tested was nontoxic to cells, and had the unique chemistry that would allow it to be processed into a foam. This porous structure is advantageous in a fracture healing scenario since the interconnecting pores aid in cell migration and ingrowth. This heterogeneous nanocomposite foam that is able to provide optimum conditions for the biological environment also presents additional issues that are of interest from a fundamental viewpoint. The material is composed of multiscale features with hydroxyapatite particles at the nano-scale level, and pores at the micro-scale level. This porosity and spatial heterogeneity introduces new challenges and opportunities for characterization and modeling. The experimental testing of this composite adhesive with unique characteristics then also provides support for the development of open issues in multiscale heterogeneous adhesive models.
Author : Baoguo Han
Publisher : Elsevier
ISBN 13 : 0128199105
Total Pages : 605 pages
Book Rating : 4.1/5 (281 download)
Download or read book Fiber-Reinforced Nanocomposites: Fundamentals and Applications written by Baoguo Han and published by Elsevier. This book was released on 2020-03-13 with total page 605 pages. Available in PDF, EPUB and Kindle. Book excerpt: Fiber-reinforced Nanocomposites: Fundamentals and Applications explores the fundamental concepts and emerging applications of fiber-reinforced nanocomposites in the automobile, aerospace, transportation, construction, sporting goods, optics, electronics, acoustics and environmental sector. In addition, the book provides a detailed overview of the properties of fiber-reinforced nanocomposites, including discussion on embedding these high-strength fibers in matrices. Due to the mismatch in structure, density, strain and thermal expansion coefficients between matrix and fibers, their thermo-mechanical properties strongly depend not only on the preparative methods, but also on the interaction between reinforcing phase and matrix phase. This book offers a concise overview of these advances and how they are leading to the creation of stronger, more durable classes of nanocomposite materials. Explores the interaction between fiber, nanoreinforcers and matrices at the nanoscale Shows how the properties of fiber-enforced nanocomposites are ideal for use for a variety of consumer products Outlines the major challenges to creating fiber-reinforced nanocomposites effectively
Author :
Publisher :
ISBN 13 :
Total Pages : 8 pages
Book Rating : 4.:/5 (742 download)
Download or read book Cohesive Zone Model Approach to Multiscale Modeling of Nanotube Reinforced Composites written by and published by . This book was released on 2004 with total page 8 pages. Available in PDF, EPUB and Kindle. Book excerpt: Our primary focus in this to apply the concept of cohesive zone models to link atomistic effect within a continuum based multi-scale model. We have used this approach to consider the effect of interfaces in carbon nanotubes on the properties of CNT based polymer matrix composites.
Author : Gullapalli Sivaramakrishna
Publisher : Springer Nature
ISBN 13 : 9811923787
Total Pages : 633 pages
Book Rating : 4.8/5 (119 download)
Download or read book Proceedings of the National Aerospace Propulsion Conference written by Gullapalli Sivaramakrishna and published by Springer Nature. This book was released on 2022-07-23 with total page 633 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book presents the select proceedings of the 3rd National Aerospace Propulsion Conference (NAPC 2020). It discusses the recent trends in the area of aerospace propulsion technologies covering both air-breathing and non-air-breathing propulsion. The topics covered include state-of-the-art design, analysis and developmental testing of gas turbine engine modules and sub-systems like compressor, combustor, turbine and alternator; advances in spray injection and atomization; aspects of combustion pertinent to all types of propulsion systems and nuances of space, missile and alternative propulsion systems. The book will be a valuable reference for beginners, researchers and professionals interested in aerospace propulsion and allied fields.
Author : Mahmood Aliofkhazraei
Publisher : CRC Press
ISBN 13 : 1466591382
Total Pages : 592 pages
Book Rating : 4.4/5 (665 download)
Download or read book Graphene Science Handbook written by Mahmood Aliofkhazraei and published by CRC Press. This book was released on 2016-04-21 with total page 592 pages. Available in PDF, EPUB and Kindle. Book excerpt: Examines the Low Resistivity, High Mobility, and Zero Bandgap of GrapheneThe Graphene Science Handbook is a six-volume set that describes graphene's special structural, electrical, and chemical properties. The book considers how these properties can be used in different applications (including the development of batteries, fuel cells, photovoltaic
Author : Mohamed Thariq Hameed Sultan
Publisher : CRC Press
ISBN 13 : 1000477452
Total Pages : 219 pages
Book Rating : 4.0/5 (4 download)
Download or read book Failure of Fibre-Reinforced Polymer Composites written by Mohamed Thariq Hameed Sultan and published by CRC Press. This book was released on 2021-12-14 with total page 219 pages. Available in PDF, EPUB and Kindle. Book excerpt: The proposed book focusses on the theme of failure of polymer composites, focusing on vital aspects of enhancing failure resistance, constituents and repair including associated complexities. It discusses characterization and experimentation of the composites under loading with respect to the specific environment and applications. Further, it includes topics as green composites, advanced materials and composite joint failure, buckling failure, and fiber-metal composite failure. It explains preparation, applications of composites for weight sensitive applications, leading to potential applications and formulations, fabrication of polymer products based on bio-resources. Provides exhaustive understanding of failure and fatigue of polymer composites Covers the failure of fiber reinforced polymer composites, composite joint failure, fiber-metal composite, and laminate failure Discusses how to enhance the resistance against failure of the polymer composites Provides input to industry related and academic orientated research problems Represents an organized perspective and analysis of materials processing, material design, and their failure under loading This book is aimed at researchers, graduate students in composites, fiber reinforcement, failure mechanism, materials science, and mechanical engineering.
Author : Samit Roy
Publisher : CRC Press
ISBN 13 : 1466586508
Total Pages : 296 pages
Book Rating : 4.4/5 (665 download)
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.
Author : Vikas Dhawan
Publisher : CRC Press
ISBN 13 : 1040020747
Total Pages : 177 pages
Book Rating : 4.0/5 (4 download)
Download or read book Fabrication Techniques and Machining Methods of Advanced Composite Materials written by Vikas Dhawan and published by CRC Press. This book was released on 2024-05-02 with total page 177 pages. Available in PDF, EPUB and Kindle. Book excerpt: Fabrication Techniques and Machining Methods of Advanced Composite Materials documents the most current inventive developments in the manufacture and machining of sophisticated composite materials. The utilization of cutting-edge engineering materials with exceptional qualities, such as lightweight and long service life, is necessary for the industry to reduce both energy consumption and production/maintenance costs. It provides scientific and technological insights on the fabrication routes of composites. It covers various applications suitable for the aerospace, nuclear, and medical fields and emphasizes advanced machining techniques. The book also highlights some of the top innovations and advances in the fabrication of advanced composite materials and their processing technologies while targeting the latest applications. This reference book is meant to be used as a one-stop resource for academics and manufacturing experts, engineers in related fields, and academic researchers. It encapsulates the current trends of today's fabrication and machining processes for advanced composite materials.
Author : Sanjay Mavinkere Rangappa
Publisher : Springer Nature
ISBN 13 : 981193603X
Total Pages : 1176 pages
Book Rating : 4.8/5 (119 download)
Download or read book Handbook of Epoxy/Fiber Composites written by Sanjay Mavinkere Rangappa and published by Springer Nature. This book was released on 2022-08-01 with total page 1176 pages. Available in PDF, EPUB and Kindle. Book excerpt: This handbook presents the current state-of-knowledge in the area of epoxy fiber composites. The book emphasizes new challenges and covers synthesis, characterization, and applications of epoxy/fiber composites. Leading researchers from industry, academy, government and private research institutions across the globe have contributed to this book. The contents comprehensively cover the current status, trends, future directions, and application opportunities in the field. This highly application-oriented handbook will be of use to researchers and professionals alike.
Author : María González Alriols
Publisher : Nova Science Publishers
ISBN 13 : 9781536192223
Total Pages : 348 pages
Book Rating : 4.1/5 (922 download)
Download or read book What to Know about Lignin written by María González Alriols and published by Nova Science Publishers. This book was released on 2021 with total page 348 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book presents recent developments about lignin documented with world renown researchers. The book is divided into 3 parts:a. Lignin Extraction/Characterizationb. Lignin Modificationc. Lignin ApplicationsLignin chemistry is still a mysterious area with various lignin types from various plants in the world providing us new opportunities to discover new materials. With the world extensive knowledge on surface chemistry, there are various methods to modify lignin structure. There are also many applications in polymeric resins, polymer composites, fertilizers and enhanced oil recovery. The book covers all the important developments about this highly important material group "Lignin".
