Download or read book Rheological Fundamentals of Polymer Processing written by J.A. Covas and published by Springer Science & Business Media. This book was released on 2013-04-17 with total page 470 pages. Available in PDF, EPUB and Kindle. Book excerpt: Experts in rheology and polymer processing present up-to-date, fundamental and applied information on the rheological properties of polymers, in particular those relevant to processing, contributing to the physical understanding and the mathematical modelling of polymer processing sequences. Basic concepts of non-Newtonian fluid mechanics, micro-rheological modelling and constitutive modelling are reviewed, and rheological measurements are described. Topics with practical relevance are debated, such as linear viscoelasticity, converging and diverging flows, and the rheology of multiphase systems. Approximation methods are discussed for the computer modelling of polymer melt flow. Subsequently, polymer processing technologies are studied from both simulation and engineering perspectives. Mixing, crystallization and reactive processing aspects are also included. Audience: An integrated and complete view of polymer processing and rheology, important to institutions and individuals engaged in the characterisation, testing, compounding, modification and processing of polymeric materials. Can also support academic polymer processing engineering programs.
Download or read book The Finite Difference Modelling of Earthquake Motions written by Peter Moczo and published by Cambridge University Press. This book was released on 2014-04-24 with total page 387 pages. Available in PDF, EPUB and Kindle. Book excerpt: Among all the numerical methods in seismology, the finite-difference (FD) technique provides the best balance of accuracy and computational efficiency. This book offers a comprehensive introduction to FD and its applications to earthquake motion. Using a systematic tutorial approach, the book requires only undergraduate degree-level mathematics and provides a user-friendly explanation of the relevant theory. It explains FD schemes for solving wave equations and elastodynamic equations of motion in heterogeneous media, and provides an introduction to the rheology of viscoelastic and elastoplastic media. It also presents an advanced FD time-domain method for efficient numerical simulations of earthquake ground motion in realistic complex models of local surface sedimentary structures. Accompanied by a suite of online resources to help put the theory into practice, this is a vital resource for professionals and academic researchers using numerical seismological techniques, and graduate students in earthquake seismology, computational and numerical modelling, and applied mathematics.
Download or read book Debris Flow written by G. Lorenzini and published by WIT Press. This book was released on 2004-02-05 with total page 221 pages. Available in PDF, EPUB and Kindle. Book excerpt: Debris flows are among the most frequent and destructive of all geomorphic processes, mainly affecting mountainous areas in a range of morphoclimatic environments, and the damage they cause is often devastating. Increased anthropisation calls for improvements in the criteria used to identify debris-flow risk areas and the prevention measures adopted. One of the main difficulties encountered by the approaches illustrated in previous literature is linked to their possible validation either in the field or in a laboratory environment. The choice of a rheological model is extremely important. This book provides methodological details, which can be applied to investigations on debris-flow mechanics, capable of providing an accurate representation of the phenomenology.
Download or read book Rheology in Polymer Processing written by Krzysztof Wilczyński and published by . This book was released on 2021-01-05 with total page 392 pages. Available in PDF, EPUB and Kindle. Book excerpt: "Rheology in Polymer Processing" introduces the fundamentals of rheology and rheometry as the basis for modeling and computer-aided design in plastics processing. The logically structured content enables the reader to intelligently use the tools of computer-aided design and modeling of plastics processing, with correct interpretation of the results. The book presents difficult and complex issues of rheology and modeling in an accessible way, with particular emphasis on the practical engineering aspects. The software described in the book allows modeling all the important problems of plastics processing. Particular attention is paid to the extrusion process, which is fundamentally important as a processing technology in mass manufacture of plastic parts, and the basis of compounding processes (blending, filling, granulation, and reinforcement). This book is aimed equally at engineers, researchers, and scientists, as well as intermediate students, for whom it will serve as an ideal course book.
Download or read book Techniques in Rheological Measurement written by A.A. Collyer and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 346 pages. Available in PDF, EPUB and Kindle. Book excerpt: In an earlier book, Rheological Measurement (A. A. Collyer & D. W. Clegg, Elsevier Applied Science, 1988), the basic rheological methods of measurement presently used were discussed in the light of the basic underlying principles and current theories. The same approach is adopted in this companion book, which is concerned with some newer or more sophisticated techniques that have resulted from a fresh understanding of the subject, or as a result of improvement in computer control, data acquisition and computational power, or more simply from an industrial need, particularly with regard to process control. The first two chapters deal with the extensional flow properties of fluids and their measurement. This inclusion is in response to a greater awareness in industry of the importance of these flows. Chapter 3 intro duces and develops the subject of surface rheology and the measurement of its properties, again a subject of increasing significance. The methods of measurement of the dynamic mechanical properties of fluids and the calculation of the resulting rheological parameters are discussed in Chap ters 4-7 inclusive. The subject areas covered are: large-amplitude oscilla tory shear, a model for viscoelastic fluids and solids, a new method of measuring dynamic mechanical properties, particularly for curing sys tems, and the use of complex waveforms in dynamic mechanical analysis.
Download or read book Rheological characterization and modeling written by Bapurao Bandgar and published by GRIN Verlag. This book was released on 2020-03-11 with total page 129 pages. Available in PDF, EPUB and Kindle. Book excerpt: Document from the year 2020 in the subject Chemistry - Other, grade: Research, , course: Research, language: English, abstract: A detailed study of the theological modelling of composite propellant slurry based on hydroxyl terminated polybutadiene (HTPB) prepolymer, Dioctyl adipate (DOA) plasticizer, toluene diisocynate curative, ammonium per chlorate (AP) oxidizer and aluminium powder as a metallic fuel is carried out and studied the effect of each of the ingredients on the composite propellant slurry (cps). The effect of temperature on viscosity of polymer and plasticizer system was studied at different temperatures, and torques (shear force). The polymer hydroxyl terminated polybutadiene (HTPB) and plasticizer (DOA) viscosity data showed temperature dependence and independent of the torque (i.e. shear force). Therefore, the viscosity data has been modelled to polynomial model of a fourth order with temperature for polymer and plasticizer. The results showed good agreement between theory and experiment. These polynomial model results have been compared with Arrhenius model. The polynomial model showed better comparison within ± 4 % error compared to Arrhenius model with ± 4 to ± 22 % error over the temperature range of 30 - 70 °C. The viscosity of the mixture was also studied at different weight fractions of the polymer:plasticizer. The viscosity of mixture showed dependence on the weight fraction of the plasticizer and temperature. Rheology concerns itself with the mechanism of flow and deformation of matter. Deformation is a phenomenon, which is associated with a volume element. This term was invented by Prof. Bingham of Lafayette College, Indiana. Significant advances have been made in polymer rheology, in bio-rheology and in suspension rheology. There has been a significant appreciation of the importance of rheology in the chemical processing industry like medicine, paints and printing ink technology etc. and biotechnological industries. It has also made important contributions in food technology, building and structural engineering, cosmetics, drilling operations and oil wells etc.
Download or read book Drilling Mud and Cement Slurry Rheology Manual written by Comité des Techniciens, Chambre Syndicale de la Recherche et de la Production du Pétrole et du Gaz Naturel and published by Editions TECHNIP. This book was released on 1982-10-31 with total page 128 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Cardiovascular Mathematics written by Luca Formaggia and published by Springer Science & Business Media. This book was released on 2010-06-27 with total page 528 pages. Available in PDF, EPUB and Kindle. Book excerpt: Mathematical models and numerical simulations can aid the understanding of physiological and pathological processes. This book offers a mathematically sound and up-to-date foundation to the training of researchers and serves as a useful reference for the development of mathematical models and numerical simulation codes.
Download or read book The Structure and Rheology of Complex Fluids written by Ronald G. Larson and published by OUP USA. This book was released on 1999-01-28 with total page 688 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Structure and Rheology of Complex Fluids describes the microstructures of polymeric, colloidal, amphiphilic, and liquid crystalline liquids, and the relationship between microstructure and mechanical and flow properties. It provides illustrations, practical examples, and worked problems. This book can serve as both a textbook for a graduate course and a research monograph.
Download or read book Rheology of Polymer Blends and Nanocomposites written by Sabu Thomas and published by Elsevier. This book was released on 2019-09-08 with total page 324 pages. Available in PDF, EPUB and Kindle. Book excerpt: Rheology of Polymer Blends and Nanocomposites: Theory, Modelling and Applications focuses on rheology in polymer nanocomposites. It provides readers with a solid grounding in the fundamentals of rheology, with an emphasis on recent advancements. Chapters explore potential future applications for nanocomposites and polymer blends, giving readers a thorough understanding of the specific features derived from rheology as a tool for the study of polymer blends and nanocomposites. This book is ideal for industrial and academic researchers in the field of polymer blends and nanocomposites, but is also a great resource for anyone who wants to learn about the applications of rheology. Sets out the principles of rheology as it is applied to polymer blends and nanocomposites Demonstrates how rheological techniques are best applied to different classes of nanocomposites Assesses the opportunities and major challenges of rheological approaches to polymer blends and nanocomposites
Download or read book Mathematical Modelling of Continuum Physics written by Angelo Morro and published by Springer Nature. This book was released on 2023-03-19 with total page 1018 pages. Available in PDF, EPUB and Kindle. Book excerpt: This monograph provides a comprehensive and self-contained treatment of continuum physics, illustrating a systematic approach to the constitutive equations for wide-ranging classes of materials. Derivations of results are detailed through careful proofs, and the contents have been developed to ensure a self-contained and consistent presentation. Part I reviews the kinematics of continuous bodies and illustrates the general setting of balance laws. Essential preliminaries to continuum physics – such as reference and current configurations, transport relations, singular surfaces, objectivity, and objective time derivatives – are covered in detail. A chapter on balance equations then develops the balance laws of mass, linear momentum, angular momentum, energy, and entropy, as well as the balance laws in electromagnetism. Part II is devoted to the general requirements on constitutive models, emphasizing the application of objectivity and consistency with the second law of thermodynamics. Common models of simple materials are then reviewed, and in this framework, detailed descriptions are given of solids (thermoelastic, elastic, and dissipative) and fluids (elastic, thermoelastic, viscous, and Newtonian). A wide of variety of constitutive models are investigated in Part III, which consists of separate chapters focused on several types of non-simple materials: materials with memory, aging and higher-order grade materials, mixtures, micropolar media, and porous materials. The interaction of the electromagnetic field with deformation is also examined within electroelasticity, magnetoelasticity, and plasma theory. Hysteretic effects and phase transitions are considered in Part IV. A new approach is established by treating entropy production as a constitutive function in itself, as is the case for entropy and entropy flux. This proves to be conceptually and practically advantageous in the modelling of nonlinear phenomena, such as those occurring in hysteretic continua (e.g., plasticity, electromagnetism, and the physics of shape memory alloys). Mathematical Modelling of Continuum Physics will be an important reference for mathematicians, engineers, physicists, and other scientists interested in research or applications of continuum mechanics.
Download or read book Rheology written by Aleksandr I︠A︡kovlevich Malkin and published by ChemTec Publishing. This book was released on 2006 with total page 485 pages. Available in PDF, EPUB and Kindle. Book excerpt: There are few comprehensive books on the market on the subject of Rheology -- the complex science dealing with flow and deformation of matter -- and these are several years old. At least now there is a book that explains the meaning of a science that many scientists need to use but only a few can fully grasp. It does so by striking the balance between oversimplification and overload of theory in a very compelling and readable manner. The authors' systematic presentation enables the authors to include all components of Rheology in one volume. The first four chapters of this book discuss various aspects of theoretical Rheology and, by examples of many studies, show how particular theory, model, or equation can be used in solving different problems. The main emphasis is on liquids, but solid materials are discussed in one full chapter as well. Methods of measurement and raw data treatment are included in one large chapter which constitutes more than one quarter of the book. Eight groups of methods are discussed giving many choices for experimentation and guidance on where and how to use them properly. The final chapter shows how to use rheological methods in different groups of products and methods of their manufacture. Usefulness of chemorheological (rheokinetical) measurements is also emphasized. This chapter continues with examples of purposeful applications in practical matters.
Download or read book Computational Rheology written by Robert G Owens and published by World Scientific. This book was released on 2002-05-29 with total page 437 pages. Available in PDF, EPUB and Kindle. Book excerpt: Modern day high-performance computers are making available to 21st-century scientists solutions to rheological flow problems of ever-increasing complexity. Computational rheology is a fast-moving subject — problems which only 10 years ago were intractable, such as 3D transient flows of polymeric liquids, non-isothermal non-Newtonian flows or flows of highly elastic liquids through complex geometries, are now being tackled owing to the availability of parallel computers, adaptive methods and advances in constitutive modelling.Computational Rheology traces the development of numerical methods for non-Newtonian flows from the late 1960's to the present day. It begins with broad coverage of non-Newtonian fluids, including their mathematical modelling and analysis, before specific computational techniques are discussed. The application of these techniques to some important rheological flow problems of academic and industrial interest is then treated in a detailed and up-to-date exposition. Finally, the reader is kept abreast of topics at the cutting edge of research in computational applied mathematics, such as adaptivity and stochastic partial differential equations.All the topics in this book are dealt with from an elementary level and this makes the text suitable for advanced undergraduate and graduate students, as well as experienced researchers from both the academic and industrial communities.
Download or read book Chemorheology of Polymers written by Peter J. Halley and published by Cambridge University Press. This book was released on 2009-05-28 with total page 445 pages. Available in PDF, EPUB and Kindle. Book excerpt: Understanding the dynamics of reactive polymer processes allows scientists to create new, high-value, high-performance polymers. This book is an indispensable resource for researchers and practitioners working in this area. It includes coverage of thermoplastics, thermoset and reactive polymers, together with practical industrial processes and modern chemorheological models and tools.
Download or read book Electrorheological Fluids Modeling and Mathematical Theory written by Michael Ruzicka and published by Springer. This book was released on 2007-05-06 with total page 186 pages. Available in PDF, EPUB and Kindle. Book excerpt: This is the first book to present a model, based on rational mechanics of electrorheological fluids, that takes into account the complex interactions between the electromagnetic fields and the moving liquid. Several constitutive relations for the Cauchy stress tensor are discussed. The main part of the book is devoted to a mathematical investigation of a model possessing shear-dependent viscosities, proving the existence and uniqueness of weak and strong solutions for the steady and the unsteady case. The PDS systems investigated possess so-called non-standard growth conditions. Existence results for elliptic systems with non-standard growth conditions and with a nontrivial nonlinear r.h.s. and the first ever results for parabolic systems with a non-standard growth conditions are given for the first time. Written for advanced graduate students, as well as for researchers in the field, the discussion of both the modeling and the mathematics is self-contained.
Download or read book Rheological Methods in Food Process Engineering written by James Freeman Steffe and published by Freeman Press. This book was released on 1996 with total page 430 pages. Available in PDF, EPUB and Kindle. Book excerpt: Introduction to rheology. Tube viscometry. Rotational viscometry. Extensional flow. Viscoelasticity.
Download or read book Geomaterials Constitutive Equations and Modelling written by F. Darve and published by CRC Press. This book was released on 1990-02-02 with total page 435 pages. Available in PDF, EPUB and Kindle. Book excerpt: Geomaterials: Constitutive Equations and Modelling is a revised, English language version of the successful French book Manuel de Rheologie des Geomateriaux published in 1987. With contributors from international experts in the field, covers the behaviour of non-metallic materials used in civil engineering.
