Download or read book Molecular Dynamics Simulation of the Glass Transition and the Deformation Behavior of Amorphous Polymers written by Yang-Lioe and published by . This book was released on 1997 with total page 538 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book An Introduction to Glass Transition written by Roberta Ramirez and published by . This book was released on 2019 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: An Introduction to Glass Transition opens with a comparison of entropy function of temperature dependence with configurational entropy, which was published by various authors and found almost the same temperature dependence with overlap. From the dependence of the logarithm of configurational entropy vs. the logarithm of temperature, the authors suggest that it is possible to successfully predict the relations between the values of m for different glass formers.Following this, microscopic local dynamics were analyzed by way of atomistic molecular dynamics simulations through the conformational transition behavior across a wide range of temperatures. The glass transition temperature may be predicted through the intersection of separate temperature dependences. Such local dynamics were found to become gradually heterogeneous when the temperature went down close to the glassy state.The closing chapter provides a brief summary of the studies relevant to glass transitions in well-defined lipids systems such as anhydrous and/or water mixed systems. Then, some current problems and future problems are described.
Download or read book Molecular Dynamics of Glass Forming Systems written by George Floudas and published by Springer Science & Business Media. This book was released on 2010-11-25 with total page 183 pages. Available in PDF, EPUB and Kindle. Book excerpt: Pressure is one of the essential thermodynamic variables that, due to some former experimental difficulties, was long known as the “forgotten variable.” But this has changed over the last decade. This book includes the most essential first experiments from the 1960's and reviews the progress made in understanding glass formation with the application of pressure in the last ten years. The systems include amorphous polymers and glass-forming liquids, polypeptides and polymer blends. The thermodynamics of these systems, the relation of the structural relaxation to the chemical specificity, and their present and future potential applications are discussed in detail. The book provides (a) an overview of systems exhibiting glassy behavior in relation to their molecular structure and provides readers with the current state of knowledge on the liquid-to-glass transformation, (b) emphasizes the relation between thermodynamic state and dynamic response and (c) shows that the information on the pressure effects on dynamics can be employed in the design of materials for particular applications. It is meant to serve as an advanced introductory book for scientists and graduate students working or planning to work with dynamics. Several scientific papers dealing with the effects of pressure on dynamics have appeared in leading journals in the fields of physics in the last ten years. The book provides researchers and students new to the field with an overview of the knowledge that has been gained in a coherent and comprehensive way.
Download or read book Materials Behavior written by Mihai Ciocoiu and published by CRC Press. This book was released on 2018-06-26 with total page 338 pages. Available in PDF, EPUB and Kindle. Book excerpt: The development of advanced materials has become extremely important in the last decade, being widely used in academic and industrial research. This book examines the potential of advanced materials as well as nanotechnology to improve fiber science from fibril to fabric mode, to create better materials and products for a variety of aspects. The book presents research advances in materials behavior using fractal analysis, mathematical modeling and simulation, and other methods. Examined are electrical, mechanical, optical, and magnetic properties; size; morphology; and chemical behavior of such materials as aerogels, polymer films, nanocomposite materials, natural composites, catalysis, and more with a view to their application in the medical, engineering, and textile fields. With chapters written by eminent scientists, the book offers valuable information for academics, researchers, and engineering professionals. Contributions range from new methods to novel applications of existing methods to help readers gain understanding of the material and/or structural behavior of new and advanced systems.
Download or read book Metallic Glass Based Nanocomposites written by Sumit Sharma and published by CRC Press. This book was released on 2019-09-23 with total page 167 pages. Available in PDF, EPUB and Kindle. Book excerpt: Metallic Glass-Based Nanocomposites: Molecular Dynamics Study of Properties provides readers with an overview of the most commonly used tools for MD simulation of metallic glass composites and provides all the basic steps necessary for simulating any material on Materials Studio. After reading this book, readers will be able to model their own problems on this tool for predicting the properties of metallic glass composites. This book provides an introduction to metallic glasses with definitions and classifications, provides detailed explanations of various types of composites, reinforcements and matrices, and explores the basic mechanisms of reinforcement-MG interaction during mechanical loading. It explains various models for calculating the thermal conductivity of metallic glass composites and provides examples of molecular dynamics simulations. Aimed at students and researchers, this book caters to the needs of those working in the field of molecular dynamics (MD) simulation of metallic glass composites.
Download or read book The Monte Carlo Method in Condensed Matter Physics written by Kurt Binder and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 406 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Monte Carlo method is now widely used and commonly accepted as an important and useful tool in solid state physics and related fields. It is broadly recognized that the technique of "computer simulation" is complementary to both analytical theory and experiment, and can significantly contribute to ad vancing the understanding of various scientific problems. Widespread applications of the Monte Carlo method to various fields of the statistical mechanics of condensed matter physics have already been reviewed in two previously published books, namely Monte Carlo Methods in Statistical Physics (Topics Curro Phys. , Vol. 7, 1st edn. 1979, 2ndedn. 1986) and Applications of the Monte Carlo Method in Statistical Physics (Topics Curro Phys. , Vol. 36, 1st edn. 1984, 2nd edn. 1987). Meanwhile the field has continued its rapid growth and expansion, and applications to new fields have appeared that were not treated at all in the above two books (e. g. studies of irreversible growth phenomena, cellular automata, interfaces, and quantum problems on lattices). Also, new methodic aspects have emerged, such as aspects of efficient use of vector com puters or parallel computers, more efficient analysis of simulated systems con figurations, and methods to reduce critical slowing down at i>hase transitions. Taken together with the extensive activity in certain traditional areas of research (simulation of classical and quantum fluids, of macromolecular materials, of spin glasses and quadrupolar glasses, etc.
Download or read book Structure and Mobility in Molecular and Atomic Glasses written by James M. O'REILLY and published by . This book was released on 1981 with total page 358 pages. Available in PDF, EPUB and Kindle. Book excerpt: Partial Contents: The Glassy State: A Summary of Experimental and Theoretical Methodology; Theory: Polymer Glasses; A Multiparameter Approach for Structural Recovery of Glasses and Its Implication for Their Physical Properties; Enthalpy Recovery in Pressure-Vitrified and Mechanically Stressed Polymeric Glasses; Fourier Transform Infrared Spectroscopy of Amorphous Polymers; High-Resolution Solid-State NMR of Glasses; Molecular Dynamics Simulation of the Glass Transition; The Glass Transition: Comparison of Computer Simulation and Laboratory Studies; Comparison and Analysis of Relaxation Processes at the Glass Transition Temperature; Changes in Photoelectronic Behavior of Glasses during Structural Relaxation; Laser Light Scattering Studies of Bulk Polymers in the Glass Transition Regime; A New Free-Volume Theory of the Glass Transition; Theory of Glass Quenched from the Melt; Relaxation in Metallic Glasses; Spectroscopy of Glasses; and Glass Transition in the Hard-Sphere Model and Kauzmann's Paradox.
Download or read book The Physics of Deformation and Fracture of Polymers written by A. S. Argon and published by Cambridge University Press. This book was released on 2013-03-07 with total page 535 pages. Available in PDF, EPUB and Kindle. Book excerpt: A physical, mechanism-based presentation of the plasticity and fracture of polymers, covering industrial scale applications through to nanoscale biofluidic devices.
Download or read book Studies of Polymer Dynamics Properties and Glass Transition Temperature with Different Structures by Molecular Dynamics Simulation written by 蔡瑞鴻 and published by . This book was released on 2018 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Assignment of the Glass Transition written by Rickey J. Seyler and published by ASTM International. This book was released on 1994 with total page 310 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Deformation Kinetics written by A. S. Krausz and published by Wiley-Interscience. This book was released on 1975 with total page 426 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Polymer Glasses written by Connie B. Roth and published by CRC Press. This book was released on 2016-12-12 with total page 587 pages. Available in PDF, EPUB and Kindle. Book excerpt: "the present book will be of great value for both newcomers to the field and mature active researchers by serving as a coherent and timely introduction to some of the modern approaches, ideas, results, emerging understanding, and many open questions in this fascinating field of polymer glasses, supercooled liquids, and thin films" –Kenneth S. Schweizer, Morris Professor of Materials Science & Engineering, University of Illinois at Urbana-Champaign (from the Foreword) This book provides a timely and comprehensive overview of molecular level insights into polymer glasses in confined geometries and under deformation. Polymer glasses have become ubiquitous to our daily life, from the polycarbonate eyeglass lenses on the end of our nose to large acrylic glass panes holding water in aquarium tanks, with advantages over glass in that they are lightweight and easy to manufacture, while remaining transparent and rigid. The contents include an introduction to the field, as well as state of the art investigations. Chapters delve into studies of commonalities across different types of glass formers (polymers, small molecules, colloids, and granular materials), which have enabled microscopic and molecular level frameworks to be developed. The authors show how glass formers are modeled across different systems, thereby leading to treatments for polymer glasses with first-principle based approaches and molecular level detail. Readers across disciplines will benefit from this topical overview summarizing the key areas of polymer glasses, alongside an introduction to the main principles and approaches.
Download or read book Molecular Basis of Transitions and Relaxations written by Dale J. Meier and published by CRC Press. This book was released on 1978 with total page 452 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Dynamical Correlations in Glassforming Liquids written by Elise R. Aaron and published by . This book was released on 2022 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Glass transitions appear across physical systems of widely varying types. Molecular liquids, polymers, and colloids have all demonstrated transition to an amorphous glassy solid when subjected to rapid cooling or compression. These materials appear frequently in nature and are useful in numerous industrial applications, including the window glass we are familiar with and many materials in the category of plastics. The macroscopic behaviors of these systems have been well documented and leveraged, but we still lack a full picture of the microscopic origins of those behaviors. Such a picture, besides its conceptual appeal, would provide a more robust framework for materials engineering, and methods developed along the way will be applicable to studies of other emergent phenomena. We thus want to investigate the physics underlying the glass transition. Specifically, we would like to quantify the dynamic heterogeneity that experiments and simulations have indicated is present. Dynamic heterogeneity refers to the presence of distinct spatial regions with collectively fast or slow dynamics, which exist at different places in the system and change over time. These heterogeneities are thought to influence the slowdown and “freezing” of the system into a glassy state. I focus here on quantifying the lifetime of the heterogeneous regions. I perform analysis on data from numerical simulations of several different systems, including a new set of molecular dynamics simulations of a Lennard-Jones variant system, at densities and temperatures approaching their glass transitions. I begin by quantifying bulk properties of each system as a function of the simulation timescale. I then compute a correlation function that comes out of previously developed theory, which provides a measure of the persistence of the heterogeneity as a function of the timescale. I observe how long that function takes to decay, and compare my results with previous attempts at measuring this quantity via other methods, which have generally given much larger results. Some interesting observations come out of these measurements, such as the presence of a time delay in the correlation signal and a constant “background” signal in my correlation measurement. Future work could improve the measurements by identifying the source of this background and estimating measurement uncertainties.
Download or read book The Glass Transition written by Ernst-Joachim Donth and published by Springer Science & Business Media. This book was released on 2001-06-06 with total page 450 pages. Available in PDF, EPUB and Kindle. Book excerpt: Describes and interrelates the following processes: cooperative alpha processes in a cold liquid, structural relaxation in the glass near Tg, the Johari-Goldstein beta process, the Williams-Götze process in a warm liquid, fast nonactivated cage rattling and boson peak, and ultraslow Fischer modes.
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 American Doctoral Dissertations written by and published by . This book was released on 1997 with total page 806 pages. Available in PDF, EPUB and Kindle. Book excerpt:
