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Rheological Characterization Of Fast Reacting Thermosets Via The Matching Of Results From A Simulation With Those From Spiral Flow Experiments
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Book Synopsis Rheological Characterization of Fast-reacting Thermosets Via the Matching of Results from a Simulation with Those from Spiral Flow Experiments by : Ulises F. González
Download or read book Rheological Characterization of Fast-reacting Thermosets Via the Matching of Results from a Simulation with Those from Spiral Flow Experiments written by Ulises F. González and published by . This book was released on 1991 with total page 318 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Dissertation Abstracts International by :
Download or read book Dissertation Abstracts International written by and published by . This book was released on 1991 with total page 734 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Rheological Characterization of Complex Materials and Modeling of Shear-free Flows by : Michel A. Beaulne
Download or read book Rheological Characterization of Complex Materials and Modeling of Shear-free Flows written by Michel A. Beaulne and published by . This book was released on 1999 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: The behaviour of complex materials, the main study of rheology, is investigated in this work. In an effort to better understand these materials, a two-step process was undertaken. First, the nonlinear behaviour of such materials was determined in a laboratory. Second, experimental measurements were extracted from the literature with respect to shear-free flows of complex materials and simulations were performed for the shear-five flows in question. These flows involve uniaxial extension in the case of fiber spinning and film casting, and biaxial extension in the caw of film blowing. Rheological experiments were conducted on polymer solutions, namely poly(ethylene oxide) and polyacrylamide, at room temperature and on a polypropylene (PP) polymer melt at high temperature, with a Weissenberg rheogoniometer in a laboratory. The shear viscosity and first normal stress difference were measured at varying shear rates. An integral constitutive equation of the K-BKZ type was used to predict the nonlinear behaviour of these materials. Transient regression was performed to find the parameters of the K-BKZ model for the U-Stamylan low-density polyethylene (LDPE), and predictions for steady-state materials functions were given. Fiber-spinning simulations were undertaken for a series of complex materials at a wide range of operating conditions. Film-casting simulations were also undertaken for a series of complex materials. (Abstract shortened by UMI.).
Book Synopsis American Doctoral Dissertations by :
Download or read book American Doctoral Dissertations written by and published by . This book was released on 1990 with total page 768 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Rheological Techniques by : R. W. Whorlow
Download or read book Rheological Techniques written by R. W. Whorlow and published by Ellis Horwood. This book was released on 1980 with total page 462 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Proceedings of the Iberian Meeting on Rheology (IBEREO 2024) by : Anabela Raymundo
Download or read book Proceedings of the Iberian Meeting on Rheology (IBEREO 2024) written by Anabela Raymundo and published by Springer. This book was released on 2024-07-29 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book presents the proceedings of IBEREO 2024, showcasing the forefront of rheological research through contributions from distinguished scientists. The chapters delve into a diverse range of topics, including theoretical analyses, detailed experimental characterizations, and advanced numerical simulations. This book provides invaluable insights for researchers in both academia and industry, especially those focused on fluid-flow characterization techniques and numerical simulations.
Book Synopsis Procedures for the Rheological Characterization of the Nonlinear Behaviour of Complex Fluids in Shear and Squeeze Flows by : Daniela Georgeta Coblaş
Download or read book Procedures for the Rheological Characterization of the Nonlinear Behaviour of Complex Fluids in Shear and Squeeze Flows written by Daniela Georgeta Coblaş and published by . This book was released on 2012 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: This paper was dedicated exclusively to the rheological characterization of simple and complex fluids and a detailed analyze of available rheometric testing procedures. Throughout this thesis the rheological behavior of both simple and complex fluids has been studied and modeled in both shear and the complex motions (shear tests and squeezing tests). By linking conventional experimental test methods with numerical simulations of real flows, this thesis introduces a new concept in rheology: Computational Rheometry. All experimental investigations carried out in this study for the squeezing flows were accompanied by numerical simulations. For the oscillatory squeezing flow the influence of initial film thikness, oscillatory amplitude and frequency, computational time step was investigated by comparison with the theoretical predictions of squeeze force and a Genrealized Reynolds Equation inclued in a finite element code in Fortran. A validity domain was established for the analitical formulation of squeezing force. The constant velocity squeeze flow was investigated also using a quasi-steady approximation of the motion, which brings a significant reduction of the computational time, and a very good correlation with the transient (deformable mesh) approximation and the analytical predictions. The investigation of free surface influence on the distribution of normal force in both constant velocity and oscillatory squeeze flow was analyzed. In the case of constant velocity squeeze flow, the numerical simulations coupled with the free surface evolution and measured normal force during experimental investigations are suggesting the presence of a partial slip during the experimen.
Book Synopsis Modeling and Simulation in Polymers by : Purushottam D. Gujrati
Download or read book Modeling and Simulation in Polymers written by Purushottam D. Gujrati and published by John Wiley & Sons. This book was released on 2010-03-30 with total page 564 pages. Available in PDF, EPUB and Kindle. Book excerpt: Filling a gap in the literature and all set to become the standard in this field, this monograph begins with a look at computational viscoelastic fluid mechanics and studies of turbulent flows of dilute polymer solutions. It then goes on discuss simulations of nanocomposites, polymerization kinetics, computational approaches for polymers and modeling polyelectrolytes. Further sections deal with tire optimization, irreversible phenomena in polymers, the hydrodynamics of artificial and bacterial flagella as well as modeling and simulation in liquid crystals. The result is invaluable reading for polymer and theoretical chemists, chemists in industry, materials scientists and plastics technologists.
Book Synopsis Principles of Polymer Processing by : Zehev Tadmor
Download or read book Principles of Polymer Processing written by Zehev Tadmor and published by John Wiley & Sons. This book was released on 2013-12-02 with total page 1004 pages. Available in PDF, EPUB and Kindle. Book excerpt: Thoroughly revised edition of the classic text on polymer processing The Second Edition brings the classic text on polymer processing thoroughly up to date with the latest fundamental developments in polymer processing, while retaining the critically acclaimed approach of the First Edition. Readers are provided with the complete panorama of polymer processing, starting with fundamental concepts through the latest current industry practices and future directions. All the chapters have been revised and updated, and four new chapters have been added to introduce the latest developments. Readers familiar with the First Edition will discover a host of new material, including: * Blend and alloy microstructuring * Twin screw-based melting and chaotic mixing mechanisms * Reactive processing * Devolatilization--theory, mechanisms, and industrial practice * Compounding--theory and industrial practice * The increasingly important role of computational fluid mechanics * A systematic approach to machine configuration design The Second Edition expands on the unique approach that distinguishes it from comparative texts. Rather than focus on specific processing methods, the authors assert that polymers have a similar experience in any processing machine and that these experiences can be described by a set of elementary processing steps that prepare the polymer for any of the shaping methods. On the other hand, the authors do emphasize the unique features of particular polymer processing methods and machines, including the particular elementary step and shaping mechanisms and geometrical solutions. Replete with problem sets and a solutions manual for instructors, this textbook is recommended for undergraduate and graduate students in chemical engineering and polymer and materials engineering and science. It will also prove invaluable for industry professionals as a fundamental polymer processing analysis and synthesis reference.
Book Synopsis Melt Rheology and Its Role in Plastics Processing by : K. Wissbrun
Download or read book Melt Rheology and Its Role in Plastics Processing written by K. Wissbrun and published by Springer Science & Business Media. This book was released on 2013-11-27 with total page 684 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book is designed to fulfill a dual role. On the one hand it provides a description of the rheological behavior of molten poly mers. On the other, it presents the role of rheology in melt processing operations. The account of rheology emphasises the underlying principles and presents results, but not detailed deriva tions of equations. The processing operations are described qualita tively, and wherever possible the role of rheology is discussed quantitatively. Little emphasis is given to non-rheological aspects of processes, for example, the design of machinery. The audience for which the book is intended is also dual in It includes scientists and engineers whose work in the nature. plastics industry requires some knowledge of aspects of rheology. Examples are the polymer synthetic chemist who is concerned with how a change in molecular weight will affect the melt viscosity and the extrusion engineer who needs to know the effects of a change in molecular weight distribution that might result from thermal degra dation. The audience also includes post-graduate students in polymer science and engineering who wish to acquire a more extensive background in rheology and perhaps become specialists in this area. Especially for the latter audience, references are given to more detailed accounts of specialized topics, such as constitutive relations and process simulations. Thus, the book could serve as a textbook for a graduate level course in polymer rheology, and it has been used for this purpose.
Download or read book Extrusion written by Harold F. Giles Jr and published by William Andrew. This book was released on 2013-09-21 with total page 638 pages. Available in PDF, EPUB and Kindle. Book excerpt: The second edition of Extrusion is designed to aid operators, engineers, and managers in extrusion processing in quickly answering practical day-to-day questions. The first part of the book provides the fundamental principles, for operators and engineers, of polymeric materials extrusion processing in single and twin screw extruders. The next section covers advanced topics including troubleshooting, auxiliary equipment, and coextrusion for operators, engineers, and managers. The final part provides applications case studies in key areas for engineers such as compounding, blown film, extrusion blow molding, coating, foam, and reprocessing. This practical guide to extrusion brings together both equipment and materials processing aspects. It covers basic and advanced topics, for reference and training, in thermoplastics processing in the extruder. Detailed reference data are provided on such important operating conditions as temperatures, start-up procedures, shear rates, pressure drops, and safety. A practical guide to the selection, design and optimization of extrusion processes and equipment Designed to improve production efficiency and product quality Focuses on practical fault analysis and troubleshooting techniques
Book Synopsis Polymer Process Engineering by : R. Griskey
Download or read book Polymer Process Engineering written by R. Griskey and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 488 pages. Available in PDF, EPUB and Kindle. Book excerpt: Polymers are ubiquitous and pervasive in industry, science, and technology. These giant molecules have great significance not only in terms of products such as plastics, films, elastomers, fibers, adhesives, and coatings but also less ob viously though none the less importantly in many leading industries (aerospace, electronics, automotive, biomedical, etc.). Well over half the chemists and chem ical engineers who graduate in the United States will at some time work in the polymer industries. If the professionals working with polymers in the other in dustries are taken into account, the overall number swells to a much greater total. It is obvious that knowledge and understanding of polymers is essential for any engineer or scientist whose professional activities involve them with these macromolecules. Not too long ago, formal education relating to polymers was very limited, indeed, almost nonexistent. Speaking from a personal viewpoint, I can recall my first job after completing my Ph.D. The job with E.I. Du Pont de Nemours dealt with polymers, an area in which I had no university training. There were no courses in polymers offered at my alma mater. My experience, incidentally, was the rule and not the exception.
Book Synopsis Composite Materials by : Kamal K. Kar
Download or read book Composite Materials written by Kamal K. Kar and published by Springer. This book was released on 2016-10-14 with total page 694 pages. Available in PDF, EPUB and Kindle. Book excerpt: Composite materials are used as substitutions of metals/traditional materials in aerospace, automotive, civil, mechanical and other industries. The present book collects the current knowledge and recent developments in the characterization and application of composite materials. To this purpose the volume describes the outstanding properties of this class of advanced material which recommend it for various industrial applications.
Download or read book Hot Embossing written by Matthias Worgull and published by William Andrew. This book was released on 2009-09-28 with total page 368 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book is an overview of replication technology for micro- and nanostructures, focusing on the techniques and technology of hot embossing, a scaleable and multi-purpose technology for the manufacture of devices such as BioMEMS and microfluidic devices which are expected to revolutionize a wide range of medical and industrial processes over the coming decade.The hot embossing process for replicating microstructures was developed by the Forschungszentrum Karlsruhe (Karlsruhe Institute of Technology) where the author is head of the Nanoreplication Group. Worgull fills a gap in existing information by fully detailing the technology and techniques of hot embossing. He also covers nanoimprinting, a process related to hot embossing, with examples of actual research topics and new applications in nanoreplication. A practical and theoretical guide to selecting the materials, machinery and processes involved in microreplication using hot embossing techniques Compares different replication processes such as: micro injection molding, micro thermoforming, micro hot embossing, and nanoimprinting Details commercially available hot embossing machinery and components like tools and mold inserts
Book Synopsis Coatings Technology Handbook by : Arthur A. Tracton
Download or read book Coatings Technology Handbook written by Arthur A. Tracton and published by CRC Press. This book was released on 2005-07-28 with total page 930 pages. Available in PDF, EPUB and Kindle. Book excerpt: Serving as an all-in-one guide to the entire field of coatings technology, this encyclopedic reference covers a diverse range of topics-including basic concepts, coating types, materials, processes, testing and applications-summarizing both the latest developments and standard coatings methods. Take advantage of the insights and experience of over
Book Synopsis Polymer Processing by : David H. Morton-Jones
Download or read book Polymer Processing written by David H. Morton-Jones and published by Springer. This book was released on 1989-06-30 with total page 278 pages. Available in PDF, EPUB and Kindle. Book excerpt: A comprehensive reference on the processing of polymer materials to finished products, dealing with all categories of materials including rubbers and composites as well as thermoplastics. The emphasis is on practical processing methods, and Morton-Jones (polymer research, U. of Lancaster) draws on his direct experience in many of the processing fields described. Acidic paper. Annotation copyrighted by Book News, Inc., Portland, OR
Book Synopsis Computer Modeling for Injection Molding by : Huamin Zhou
Download or read book Computer Modeling for Injection Molding written by Huamin Zhou and published by John Wiley & Sons. This book was released on 2013-03-04 with total page 40 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book covers a wide range of applications and uses of simulation and modeling techniques in polymer injection molding, filling a noticeable gap in the literature of design, manufacturing, and the use of plastics injection molding. The authors help readers solve problems in the advanced control, simulation, monitoring, and optimization of injection molding processes. The book provides a tool for researchers and engineers to calculate the mold filling, optimization of processing control, and quality estimation before prototype molding.
