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Influence Of Temperature And Strain Rate On The Compressive Behavior Of Pmma And Polycarbonate Polymers
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Book Synopsis Influence of Temperature and Strain Rate on the Compressive Behavior of PMMA and Polycarbonate Polymers by :
Download or read book Influence of Temperature and Strain Rate on the Compressive Behavior of PMMA and Polycarbonate Polymers written by and published by . This book was released on 2001 with total page 4 pages. Available in PDF, EPUB and Kindle. Book excerpt: Compression stress-strain measurements have been made on commercial polymethylmethacrylate (PMMA) and polycarbonate (PC) polymers as a function of tcmperature ( -197 C to 220 C) and strain rate. A split-Hopkinson-pressure bar (SJIPU) was used to achieve strain rates of about 2500 s-' and a servohydraulic tester was used for lower strain rate testing (0.001 to 5 s-'). The mechanical response of these transparent polymers is quite different. The strength of PC is weakly dependent on strain rate, only moderately dependent on temperature, and remains ductile to -197OC. In contrast, the strength of PMMA is linearly dependent on temperature and strongly dependent on strain rate. Significantly, PMMA develops cracking and fails in compression with little ductility (7 4 % total strain) at either low strain rates and very low temperatures ( -197OC) or at high strain rates and temperatures very near ambient.
Book Synopsis Dynamic Behavior of Materials by : Marc A. Meyers
Download or read book Dynamic Behavior of Materials written by Marc A. Meyers and published by John Wiley & Sons. This book was released on 1994-10-28 with total page 694 pages. Available in PDF, EPUB and Kindle. Book excerpt: Addresses fundamentals and advanced topics relevant to the behavior of materials under in-service conditions such as impact, shock, stress and high-strain rate deformations. Deals extensively with materials from a microstructure perspective which is the future direction of research today.
Book Synopsis The Physics of Deformation and Fracture of Polymers by : A. S. Argon
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.
Book Synopsis Viscoelastic Properties of Polymers by : John D. Ferry
Download or read book Viscoelastic Properties of Polymers written by John D. Ferry and published by John Wiley & Sons. This book was released on 1980-09-16 with total page 676 pages. Available in PDF, EPUB and Kindle. Book excerpt: Viscoelastic behavior reflects the combined viscous and elastic responses, under mechanical stress, of materials which are intermediate between liquids and solids in character. Polymers the basic materials of the rubber and plastic industries and important to the textile, petroleum, automobile, paper, and pharmaceutical industries as well exhibit viscoelasticity to a pronounced degree. Their viscoelastic properties determine the mechanical performance of the final products of these industries, and also the success of processing methods at intermediate stages of production. Viscoelastic Properties of Polymers examines, in detail, the effects of the many variables on which the basic viscoelastic properties depend. These include temperature, pressure, and time; polymer chemical composition, molecular weight and weight distribution, branching and crystallinity; dilution with solvents or plasticizers; and mixture with other materials to form composite systems. With guidance by molecular theory, the dependence of viscoelastic properties on these variables can be simplified by introducing certain ancillary concepts such as the fractional free volume, the monomeric friction coefficient, and the spacing between entanglement loci, to provide a qualitative understanding and in many cases a quantitative prediction of how to achieve desired results. The phenomenological theory of viscoelasticity which permits interrelation of the results of different types of experiments is presented first, with many useful approximation procedures for calculations given. A wide variety of experimental methods is then described, with critical evaluation of their applicability to polymeric materials of different consistencies and in different regions of the time scale (or, for oscillating deformations, the frequency scale). A review of the present state of molecular theory follows, so that viscoelasticity can be related to the motions of flexible polymer molecules and their entanglements and network junctions. The dependence of viscoestic properties on temperature and pressure, and its descriptions using reduced variables, are discussed in detail. Several chapters are then devoted to the dependence of viscoelastic properties on chemical composition, molecular weight, presence of diluents, and other features, for several characteristic classes of polymer materials. Finally, a few examples are given to illustrate the many potential applications of these principles to practical problems in the processing and use of rubbers, plastics, and fibers, and in the control of vibration and noise. The third edition has been brought up to date to reflect the important developments, in a decade of exceptionally active research, which have led to a wider use of polymers, and a wider recognition of the importance and range of application of viscoelastic properties. Additional data have been incorporated, and the book s chapters on dilute solutions, theory of undiluted polymers, plateau and terminal zones, cross-linked polymers, and concentrated solutions have been extensively rewritten to take into account new theories and new experimental results. Technical managers and research workers in the wide range of industries in which polymers play an important role will find that the book provides basic information for practical applications, and graduate students in chemistry and engineering will find, in its illustrations with real data and real numbers, an accessible introduction to the principles of viscoelasticity.
Book Synopsis An Introduction to the Mechanical Properties of Solid Polymers by : I. M. Ward
Download or read book An Introduction to the Mechanical Properties of Solid Polymers written by I. M. Ward and published by John Wiley & Sons. This book was released on 2005-08-19 with total page 394 pages. Available in PDF, EPUB and Kindle. Book excerpt: Provides a comprehensive introduction to the mechanical behaviour of solid polymers. Extensively revised and updated throughout, the second edition now includes new material on mechanical relaxations and anisotropy, composites modelling, non-linear viscoelasticity, yield behaviour and fracture of tough polymers. The accessible approach of the book has been retained with each chapter designed to be self contained and the theory and applications of the subject carefully introduced where appropriate. The latest developments in the field are included alongside worked examples, mathematical appendices and an extensive reference. Fully revised and updated throughout to include all the latest developments in the field Worked examples at the end of the chapter An invaluable resource for students of materials science, chemistry, physics or engineering studying polymer science
Book Synopsis Thermoforming by : Muralisrinivasan Natamai Subramanian
Download or read book Thermoforming written by Muralisrinivasan Natamai Subramanian and published by John Wiley & Sons. This book was released on 2025-07-22 with total page 357 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book is a comprehensive reference manual that contains essential information on thermoforming processing and technology. The field of thermoforming is experiencing rapid development driven by commercial factors; millions of tons of polymers are manufactured for use in various applications, both as commodity and specialty polymers. Building on the previous edition published about ten years ago, this edition includes new, as well as, fully revised chapters and updated information on materials and processes. The book is designed to provide practitioners with essential information on processing and technology in a concise manner. The book caters to both engineers and experts by providing introductory aspects, background information, and an overview of thermoforming processing and technology. The troubleshooting section includes flowcharts to assist in correcting thermoforming processes. “Thermoforming: Processing and Technology” offers a complete account of thermoplastics, covering properties and forming, with chapters providing perspective on the technologies involved. Readers will find it: serves as a handy knowledge source for professionals who occasionally work on thermoforming projects or need to refresh their knowledge; offers a troubleshooting guide that can help to identify and solve challenges that may arise in thermoforming processes; provides insights into process optimization, helping businesses improve efficiency, reduce waste, and enhance the quality of thermoformed products; acts as a course book to inform students about the thermoforming process. Audience The book will be of interest to mechanical, materials engineers, and process engineers who are involved in designing and optimizing thermoforming processes; professionals in the manufacturing and production industries who use thermoforming as a manufacturing method, such as in the production of plastic packaging, automotive components, and consumer goods; scientists, researchers, and students in plastics/polymer engineering and technology, materials science, polymer technology; professionals responsible for ensuring product quality and compliance with industry standards.
Book Synopsis Shock Compression of Condensed Matter - 2001 by : Michael D. Furnish
Download or read book Shock Compression of Condensed Matter - 2001 written by Michael D. Furnish and published by American Institute of Physics. This book was released on 2002-07-12 with total page 802 pages. Available in PDF, EPUB and Kindle. Book excerpt: Part One and Part Two
Book Synopsis Advances in Polymer Materials and Technology by : Anandhan Srinivasan
Download or read book Advances in Polymer Materials and Technology written by Anandhan Srinivasan and published by CRC Press. This book was released on 2016-08-19 with total page 825 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book covers recent advancements in the field of polymer science and technology. Frontiers areas, such as polymers based on bio-sources, polymer based ferroelectrics, polymer nanocomposites for capacitors, food packaging and electronic packaging, piezoelectric sensors, polymers from renewable resources, superhydrophobic materials and electrospinning are topics of discussion. The contributors to this book are expert researchers from various academic institutes and industries from around the world.
Book Synopsis Mechanics of Solid Polymers by : Jorgen S Bergstrom
Download or read book Mechanics of Solid Polymers written by Jorgen S Bergstrom and published by William Andrew. This book was released on 2015-07-11 with total page 524 pages. Available in PDF, EPUB and Kindle. Book excerpt: Very few polymer mechanics problems are solved with only pen and paper today, and virtually all academic research and industrial work relies heavily on finite element simulations and specialized computer software. Introducing and demonstrating the utility of computational tools and simulations, Mechanics of Solid Polymers provides a modern view of how solid polymers behave, how they can be experimentally characterized, and how to predict their behavior in different load environments. Reflecting the significant progress made in the understanding of polymer behaviour over the last two decades, this book will discuss recent developments and compare them to classical theories. The book shows how best to make use of commercially available finite element software to solve polymer mechanics problems, introducing readers to the current state of the art in predicting failure using a combination of experiment and computational techniques. Case studies and example Matlab code are also included. As industry and academia are increasingly reliant on advanced computational mechanics software to implement sophisticated constitutive models – and authoritative information is hard to find in one place - this book provides engineers with what they need to know to make best use of the technology available. - Helps professionals deploy the latest experimental polymer testing methods to assess suitability for applications - Discusses material models for different polymer types - Shows how to best make use of available finite element software to model polymer behaviour, and includes case studies and example code to help engineers and researchers apply it to their work
Book Synopsis Split Hopkinson (Kolsky) Bar by : Weinong W. Chen
Download or read book Split Hopkinson (Kolsky) Bar written by Weinong W. Chen and published by Springer Science & Business Media. This book was released on 2010-11-11 with total page 390 pages. Available in PDF, EPUB and Kindle. Book excerpt: The authors systematically describe the general principles of Kolsky bars, or split Hopkinson bars, which are widely used for obtaining dynamic material properties. Modifications are introduced for obtaining reliable data. Specific experiment design guidelines are provided to subject the specimen to desired testing conditions. Detailed Kolsky-bar examples are given for different classes of materials (brittle, ductile, soft, etc) and for different loading conditions (tension, torsion, triaxial, high/low temperatures, intermediate strain rate, etc). The Kolsky bars used for dynamic structural characterization are briefly introduced. A collection of dynamic properties of various materials under various testing conditions is included which may serve as a reference database. This book assists both beginners and experienced professionals in characterizing high-rate material response with high quality and consistency. Readers who may benefit from this work include university students, instructors, R & D professionals, and scholars/engineers in solid mechanics, aerospace, civil and mechanical engineering, as well as materials science and engineering.
Book Synopsis Handbook of Polycarbonate Science and Technology by : John T. Bendler
Download or read book Handbook of Polycarbonate Science and Technology written by John T. Bendler and published by CRC Press. This book was released on 1999-10-29 with total page 374 pages. Available in PDF, EPUB and Kindle. Book excerpt: "Summarizes research and progress in understanding the fundamental molecular properties of polycarbonates by covering history, theory, modeling, and spectroscopy. Offers the first comprehensive survey of polycarbonates in over 30 years."
Book Synopsis Mechanical Behaviour of Engineering Materials by : Joachim Roesler
Download or read book Mechanical Behaviour of Engineering Materials written by Joachim Roesler and published by Springer Science & Business Media. This book was released on 2007-10-16 with total page 540 pages. Available in PDF, EPUB and Kindle. Book excerpt: How do engineering materials deform when bearing mechanical loads? To answer this crucial question, the book bridges the gap between continuum mechanics and materials science. The different kinds of material deformation are explained in detail. The book also discusses the physical processes occurring during the deformation of all classes of engineering materials and shows how these materials can be strengthened to meet the design requirements. It provides the knowledge needed in selecting the appropriate engineering material for a certain design problem. This book is both a valuable textbook and a useful reference for graduate students and practising engineers.
Book Synopsis Polymer Blends Handbook by : L. A. Utracki
Download or read book Polymer Blends Handbook written by L. A. Utracki and published by . This book was released on 2014-01-31 with total page 1800 pages. Available in PDF, EPUB and Kindle. Book excerpt: Written by an international group of highly respected contributors, this fundamental reference work covers all aspects of polymer blends: science, engineering, technology and applications.
Book Synopsis Deformation and Fracture of Polycarbonate and Rubber-modified Polycarbonate Under Controlled Temperature, Deformation Rate, and Notch Stress Triaxiality by : Michael DeShawn Johnson
Download or read book Deformation and Fracture of Polycarbonate and Rubber-modified Polycarbonate Under Controlled Temperature, Deformation Rate, and Notch Stress Triaxiality written by Michael DeShawn Johnson and published by . This book was released on 2001 with total page 440 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Polymer Engineering Science and Viscoelasticity by : Hal F. Brinson
Download or read book Polymer Engineering Science and Viscoelasticity written by Hal F. Brinson and published by Springer. This book was released on 2015-01-24 with total page 488 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book provides a unified mechanics and materials perspective on polymers: both the mathematics of viscoelasticity theory as well as the physical mechanisms behind polymer deformation processes. Introductory material on fundamental mechanics is included to provide a continuous baseline for readers from all disciplines. Introductory material on the chemical and molecular basis of polymers is also included, which is essential to the understanding of the thermomechanical response. This self-contained text covers the viscoelastic characterization of polymers including constitutive modeling, experimental methods, thermal response, and stress and failure analysis. Example problems are provided within the text as well as at the end of each chapter. New to this edition: · One new chapter on the use of nano-material inclusions for structural polymer applications and applications such as fiber-reinforced polymers and adhesively bonded structures · Brings up-to-date polymer production and sales data and equipment and procedures for evaluating polymer characterization and classification · The work serves as a comprehensive reference for advanced seniors seeking graduate level courses, first and second year graduate students, and practicing engineers
Book Synopsis Dynamic Behavior of Materials by : Mikko Hokka
Download or read book Dynamic Behavior of Materials written by Mikko Hokka and published by Elsevier. This book was released on 2023-11-21 with total page 714 pages. Available in PDF, EPUB and Kindle. Book excerpt: Dynamic Behavior of Materials: Fundamentals, Material Models, and Microstructure Effects provides readers with the essential knowledge and tools necessary to determine best practice design, modeling, simulation and application strategies for a variety of materials while also covering the fundamentals of how material properties and behavior are affected by material structure and high strain rates. The book examines the relationships between material microstructure and consequent mechanical properties, enabling the development of materials with improved performance and more effective design of parts and components for high-rate applications. Sections cover the fundamentals of dynamic material behavior, with chapters studying dynamic elasticity and wave propagation, dynamic plasticity of crystalline materials, ductile fracture, brittle fracture, adiabatic heating and strain localization, response to shock loading, various material characterization methods, such as the Hopkinson Bar Technique, the Taylor Impact Experiment, different shock loading experiments, recent advances in dynamic material behavior, the dynamic behaviors of nanocrystalline materials, bulk metallic glasses, additively manufactured materials, ceramics, concrete and concrete-reinforced materials, geomaterials, polymers, composites, and biomaterials, and much more. Focuses on the relationship between material microstructure and resulting mechanical responses Covers the fundamentals, characterization methods, modeling techniques, applications and recent advances of the dynamic behavior of a broad array of materials Includes insights into manufacturing and processing techniques that enable more effective material design and application
Book Synopsis Large Strain Material Characterization and Modeling of Poly(methyl Methacrylate) (PMMA) Near the Glass Transition by : Gregory O. Palm
Download or read book Large Strain Material Characterization and Modeling of Poly(methyl Methacrylate) (PMMA) Near the Glass Transition written by Gregory O. Palm and published by . This book was released on 2006 with total page 420 pages. Available in PDF, EPUB and Kindle. Book excerpt: Abstract: The mechanical behavior of amorphous thermoplastics, such as poly(methyl methacrylate) (PMMA), strongly depends on temperature and strain rate. Understanding these dependencies is critical for many polymer processing applications and in particular, for those occurring near the glass transition temperature, such as hot embossing. In this thesis, the large strain mechanical behavior of PMMA is investigated using uniaxial and plane strain compression tests at varying temperatures and strain rates. This study captures both the temperature and rate of deformation dependence of PMMA, and correlates well to previous experimental work found in the literature for similar temperatures and strain rates. Additional work investigates the temperature change of the polymer specimens while the specimens are deformed at the glass transition, and the results to this study correlate well to those done at lower temperatures. Aside from experimental characterization of PMMA, a three-dimensional constitutive model previously used to describe the mechanical behavior of another amorphous polymer, poly(ethylene terephthalate)-glycol (PETG), is applied to model the observed mechanical behavior of PMMA. A comparison with the experimental data reveals that the model is able to successfully capture the observed stress-strain behavior, including the initial elastic modulus, flow stress, initial strain hardening, and the dramatic strain hardening behavior. In general, the model captures the temperature and rate dependence of PMMA in both uniaxial and plane strain compression. Elastic and Neo-Hookean material models were used in an initial 2-D study of embossing a polymer substrate with a rigid stamp. The results of this study show that a complex and accurate material model is necessary to obtain good numerical results using finite element analysis, since the results using the two different material models yielded different numerical results. Future work will further develop the finite element simulations into 2-D and 3-D models that optimize and simulate the embossing process using the constitutive material model.
