Download or read book Jamming and Rheology written by Andrea J. Liu and published by CRC Press. This book was released on 2001-02-22 with total page 584 pages. Available in PDF, EPUB and Kindle. Book excerpt: The subject of jamming and rheology is a broad and interdisciplinary one that is generating increasing interest. This book deals with one of the oldest unsolved problems in condensed matter physics - that of the nature of glass transition in supercooled liquids. Jamming and Rheology is a collection of reprinted articles from several fields, ranging from structural glasses to foams and granular materials. Glassy relaxation and constrained dynamics (jamming) occur at all scales, from microscopic to macroscopic - in the glass transition of supercooled liquids, in fluids confined to thin films, in the structural arrest of particles such as granular materials, and in foams which must be driven by an applied stress in order to flow. Because jamming occurs at the transition between where a flow occurs and where motion stops, it is hoped that there may be a universal feature that describes this transition in all systems. This volume shows that the systems described above share many common phenomenological features, and covers work done by a wide range of scientists and technologists working in areas from physics to chemistry to chemical and mechanical engineering.
Download or read book The Rheology of Jamming written by Maureen Dinkgreve and published by . This book was released on 2018 with total page 154 pages. Available in PDF, EPUB and Kindle. Book excerpt: "Traffic jams are a common phenomenon on highways; when there are too many cars on the road the traffic gets stuck. A similar jamming phenomenon also occurs in yield-stress fluids that consist of a dispersion of a material in a liquid, such as suspensions of particles or polymers, foams or emulsions. At high concentrations, these materials behave like solids (like in traffic jams there is no flow), and they only start to flow when enough stress is applied. For example, toothpaste behaves like a solid at rest but it starts to flow when you squeeze it out of the tube. This threshold stress that is needed to initiate flow is called the yield stress, hence the name yield-stress material. It is important to understand these kinds of properties and the flow behavior (rheology) of these materials since they are widely applied in the cosmetic, oil and food industry. We seek to understand the transition from mechanically solid-like to fluid-like behavior on a fundamental level. The associated jamming transition between solid and liquid "states" has similarities to classical phase transitions like those between solid, liquid, gas and plasma phases. However it is not completely clear how general the jamming description is, and to what extent the mechanical behavior of jammed materials can be fully described by considering the jamming transition to be analogous to a classical phase transition. In this thesis we study the flow behavior (the rheology) of a variety of yield-stress materials in the aim of describing, understanding and predicting the rheology of jamming."--Samenvatting auteur.
Download or read book Foam Rheology Near the Jamming Transition written by and published by . This book was released on 2013 with total page 139 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Jamming and Soft core Rheology written by and published by . This book was released on 2013 with total page 56 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Jamming and the Rheology of Hard Core Colloids written by R. S. Farr and published by . This book was released on 1998 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Role of Particle Shape in Granular Rheology and Jamming written by Theodore A. Marschall and published by . This book was released on 2020 with total page 243 pages. Available in PDF, EPUB and Kindle. Book excerpt: "Granular materials, non-Brownian suspension, emulsions, and foams are a class of 'soft matter' systems where the dominant interaction between particles arises from direct contact and the particles are sufficiently macroscopic so that thermal fluctuations can be ignored. All of these systems undergo a similar transition from a flowing phase to a disordered solid phase known as the jamming transition, which has been found to share many characteristics with phase transitions in thermalized systems. Most work on granular media has focused on the idealized case of spherical particles. This work focuses on systems with elongated convex grains and several nonconvex grain shapes in two dimensions, using a simple model of frictionless particles in a viscous background medium. These systems are compressed isotropically and sheared continuously over a wide range of densities and strain rates, with a particular focus on the rotational degrees of freedom of anisotropic particles. We find that the jamming transition in systems with anisotropic particles is broadly similar to that of circular disks, though in several ways the limit of circular disks is singular. We identify a nonuniform distribution of contacts on the surfaces of anisotropic particles, both when compressed and sheared, with a peak that diverges in the circular limit. We find that systems of convex particles are hypostatic at jamming, having fewer constraints from contacts than internal degrees of freedom. This leads to modes of motion with zero cost to energy at jamming, but only for small displacements, so that the system remains rigid against macroscopic perturbations. In particular, we identify sliding modes for particles which have flat regions on their surfaces. When sheared, anisotropic particles develop orientational ordering, which usually depends non-monotonically on the packing density. In the limit approaching circular disks, the ordering jumps discontinuously at the jamming transition. We explain the ordering with a mean-field model of particle rotation, finding that it results from the shearing acting as an ordering field combined with local interactions between particles. Finally, we find similar orientational ordering in sheared systems of nonconvex particles, which is modified by the more complex local structures of such particles"--Pages x-xi.
Download or read book Transient Dynamics of Concentrated Particulate Suspensions Under Shear written by Endao Han and published by Springer Nature. This book was released on 2020-03-09 with total page 102 pages. Available in PDF, EPUB and Kindle. Book excerpt: This thesis demonstrates the first use of high-speed ultrasound imaging to non-invasively probe how the interior of a dense suspension responds to impact. Suspensions of small solid particles in a simple liquid can generate a rich set of dynamic phenomena that are of fundamental scientific interest because they do not conform to the typical behavior expected of either solids or liquids. Most remarkable is the highly counter-intuitive ability of concentrated suspensions to strongly thicken and even solidify when sheared or impacted. The understanding of the mechanism driving this solidification is, however, still limited, especially for the important transient stage while the response develops as a function of time. In this thesis, high-speed ultrasound imaging is introduced to track, for the first time, the transition from the flowing to the solidified state and directly observe the shock-like shear fronts that accompany this transition. A model is developed that agrees quantitatively with the experimental measurements. The combination of imaging techniques, experimental design, and modeling in this thesis represents a major breakthrough for the understanding of the dynamic response of dense suspensions, with important implications for a wide range of applications ranging from the handling of slurries to additive manufacturing.
Download or read book Straddling the Jamming Transition written by Adrien Izzet and published by . This book was released on 2017 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: In their dense state, granular media can either flow like fluids or behave like solids, when they are jammed. The first part of this thesis deals with the flowing regime. We begin by presenting the non-local rheology and discuss this model with respect to the other ones proposed in the community. In order to probe this model, we perform experimental measurements of the velocity profile in an avalanche flow in a narrow channel. This setup allows to observe both the fluid regime and the creep of the supposedly jammed region, in the depth of the channel. We probe the non-local model on the experimental results. The fit of the theory raises the question of the definition of the boundary conditions on such system. We therefore perform molecular dynamic simulations on an incline plane setup in order to fit the non-local model and measure the free surface boundary condition.The second part of this thesis investigates the elastic properties of jammed granular media weakly confined. Near the rigidity (jamming) transition of the medium, elastic moduli decrease and exhibit different scaling laws in their dependence on the confining pressure. We therefore perform acoustic measurements of compression waves at vanishing pressures, by the mean of parabolic flights. We then revisit the model of inter-particle contacts. This enables to predict the elastic behavior of the medium over a wide range of pressures: from evanescent to high pressures, at which the prediction from the mean field approach using the Hertz contact model has been shown to be valid. Last, we present preliminary results of shear wave propagations.
Download or read book The Rheology Handbook written by Thomas G. Mezger and published by Vincentz Network GmbH & Co KG. This book was released on 2006 with total page 308 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Rheological Techniques written by R. W. Whorlow and published by Prentice Hall. This book was released on 1992 with total page 492 pages. Available in PDF, EPUB and Kindle. Book excerpt: Covering the principles of all rheological test methods, this edition has been revised and updated to include a number of new references and to describe recent developments in computer control methods, elongational flow measurement and the use of flow visualization techniques.
Download or read book Advances in Food Rheology and Its Applications written by Jasim Ahmed and published by Woodhead Publishing. This book was released on 2016-09-13 with total page 530 pages. Available in PDF, EPUB and Kindle. Book excerpt: Advances in Food Rheology and Its Applications presents the latest advances in the measurement and application of food rheology, one of the most important tools for food companies when characterizing ingredients and final products, and a predictor of product performance and consumer acceptance. Split into two main focuses, the book gives in-depth analysis of the general advances in the field, with coverage of the relationship between food microstructure and rheology, the use of tribology in the study of oral processing, the use of large amplitude oscillatory shear (LAOS) measurement and Fourier-transform rheology in food, and the influence of fibers and particle size distribution on food rheology, as well as many other advances. Written by a leading international team of authors, the book provides an in-depth and state-of-the-art coverage of this essential topic on the consumer acceptance of food. Brings together top researchers in the field of rheology, providing in-depth and state-of-the-art coverage on an area of study essential for managing the quality of foods and gaining consumer acceptance Presents in-depth coverage of advances in rheology, many of which have never been featured before, including tribology, large amplitude oscillatory shear measurement, and the influence of fibers and particle size distribution on food rheology Contains information that is highly relevant to the industrialist who wants to improve the rheological properties of the foods with which they are working
Download or read book Theory and Applications of Colloidal Suspension Rheology written by Norman J. Wagner and published by Cambridge University Press. This book was released on 2021-04-15 with total page 437 pages. Available in PDF, EPUB and Kindle. Book excerpt: Essential text on the practical application and theory of colloidal suspension rheology, written by an international coalition of experts.
Download or read book An Introduction to Rheology written by Howard A. Barnes and published by Elsevier. This book was released on 1989-06 with total page 214 pages. Available in PDF, EPUB and Kindle. Book excerpt: This text introduces the subject of rheology in terms understandable to non-experts and describes the application of rheological principles to many industrial products and processes.
Download or read book Rheology and Non Newtonian Fluids written by Fridtjov Irgens and published by Springer Science & Business Media. This book was released on 2013-07-25 with total page 192 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book gives a brief but thorough introduction to the fascinating subject of non-Newtonian fluids, their behavior and mechanical properties. After a brief introduction of what characterizes non-Newtonian fluids in Chapter 1 some phenomena characteristic of non-Newtonian fluids are presented in Chapter 2. The basic equations in fluid mechanics are discussed in Chapter 3. Deformation kinematics, the kinematics of shear flows, viscometric flows, and extensional flows are the topics in Chapter 4. Material functions characterizing the behavior of fluids in special flows are defined in Chapter 5. Generalized Newtonian fluids are the most common types of non-Newtonian fluids and are the subject in Chapter 6. Some linearly viscoelastic fluid models are presented in Chapter 7. In Chapter 8 the concept of tensors is utilized and advanced fluid models are introduced. The book is concluded with a variety of 26 problems. Solutions to the problems are ready for instructors
Download or read book Rheology written by Giovanni Astarita and published by Springer Science & Business Media. This book was released on 2013-06-29 with total page 646 pages. Available in PDF, EPUB and Kindle. Book excerpt: At the VIIth International Congress on Rheology, which was held in Goteborg in 1976, Proceedings were for the first time printed in advance and distributed to all participants at the time of the Congress. Although of course we Italians would be foolish to even try to emulate our Swedish friends as far as efficiency of organization is concerned, we decided at the very beginning that, as far as the Proceedings were concerned, the VIIIth International Congress on Rheology in Naples would follow the standards of time liness set by the Swedish Society of Rheology. This book is the result we have obtained. We wish to acknowledge the cooperation of Plenum Press in producing it within the very tight time schedule available. Every four years, the International Congress on Rheology represents the focal point where all rheologists meet, and the state of the art is brought up to date for everybody interested; the Proceedings represent the written record of these milestones of scientific progress in rheology. We have tried to make use of the traditions of having invited lectures, and of leaving to the organizing committee the freedom to choose the lecturers as they see fit, in order to collect a group of invited lectures which gives as broad as possible a landscape of the state of the art in every relevant area of rheology. The seventeen invited lectures are collected in the first volume of the proceedings.
Download or read book Colloidal Suspension Rheology written by Jan Mewis and published by Cambridge University Press. This book was released on 2012 with total page 417 pages. Available in PDF, EPUB and Kindle. Book excerpt: Presented in an accessible and introductory manner, this is the first book devoted to the comprehensive study of colloidal suspensions.
Download or read book Microgel Suspensions written by Alberto Fernandez-Nieves and published by John Wiley & Sons. This book was released on 2011-01-11 with total page 475 pages. Available in PDF, EPUB and Kindle. Book excerpt: Providing a vital link between chemistry and physics on the nanoscale, this book offers concise coverage of the entire topic in five major sections, beginning with synthesis of microgel particles and continuing with their physical properties. The phase behavior and dynamics of resulting microgel suspensions feature in the third section, followed by their mechanical properties. It concludes with detailed accounts of numerous industrial, commercial and medical applications. Edited by David Weitz, Professor at Harvard and one of the world's pre-eminent experts in the field.
