Viscoelastic Materials


Book Description

This graduate text on viscoelastic materials addresses design applications as diverse as earplugs, computer disks and medical diagnostics.




Constructional Viscoelastic Composite Materials


Book Description

Viscoelasticity is a complicated theorem that is generally used in several aspects of material characterization and modeling of polymers, resins, fiber-reinforced composites, bituminous composites, etc. On the other hand, the heterogeneous nature of composites like asphalt concrete and fiber-reinforced polymers has motivated lots of researchers to investigate the mechanical and rheological properties of these materials. This book mainly consists of the theory and application of viscoelastic materials used for construction. It starts with a comprehensible presentation of the theory of linear and nonlinear viscoelasticity. Wherein, the application of viscoelastic equations and principles on constructional viscoelastic composite materials considering time, temperature, loading rate dependency, and heterogeneity of composite substances is highlighted. The principles and equations of the viscoelasticity theorem are presented in several books, but here it is tried to present them more understandable and straightforwardly. This helps in solving real problems of heterogeneous composite materials, especially those which are used in construction. Moreover, the fundamental experiments for characterizing the elastic and viscoelastic properties of fibrous and bituminous composites are introduced and summarized. Then after, some analytical and empirical formulations for deriving the material properties of composites from the properties of the basic constituents are presented. These are followed by numerical simulation techniques using the finite element method to simulate composite materials.




Viscoelastic Materials


Book Description




Engineering Viscoelasticity


Book Description

Engineering Viscoelasticity covers all aspects of the thermo- mechanical response of viscoelastic substances that a practitioner in the field of viscoelasticity would need to design experiments, interpret test data, develop stress-strain models, perform stress analyses, design structural components, and carry out research work. The material in each chapter is developed from the elementary to the esoteric, providing the background in mathematics and mechanics that are central to understanding the subject matter being presented. This book also examines how viscoelastic materials respond to the application of loads, and provides practical guidelines to use them in the design of commercial, military and industrial applications.




Theory of Viscoelasticity


Book Description

Integration of theoretical developments offers complete description of linear theory of viscoelastic behavior of materials, with theoretical formulations derived from continuum mechanics viewpoint and discussions of problem solving. 1982 edition.




Handbook of Viscoelastic Vibration Damping


Book Description

Die weitestgehende Verhinderung unerwünschter Vibrationen ist eine unbedingte Voraussetzung für eine fehlerfreie Funktion von Maschinen und Anlagen. Eine wirksame Lösung besteht darin, viskoelastische Werkstoffe in oder um das vibrierende Bauteil einzufügen. Dieser Band erklärt die Grundlagen der viskoelastischen Dämpfung in leicht verständlichem Stil.




Applications of Viscoelasticity


Book Description

Applications of Viscoelasticity: Bituminous Materials Characterization and Modeling starts with an introduction to the theory of viscoelasticity, emphasizing its importance to various applications in material characterization and modeling. It next looks at constitutive viscoelastic functions, outlines basic equations for different loading conditions, and introduces the Boltzmann superposition principle, relaxation modulus, and creep compliance. Mechanical models, including integer-order and fractional-order are studied next, featuring real experimentation data alongside the benefits and drawbacks of using each model in various real-world scenarios. The book then covers the correspondence principle, followed by time–temperature superposition, featuring a simple procedure to construct a real master curve and challenges that might be encountered. The concluding chapters cover the Hopkins and Hamming, Park and Kim, and General Power law methods for interconversion of constitutive viscoelastic functions, applications of viscoelasticity for experimental tests, and incremental form of viscoelastic relations for numerical modeling. The book also includes supplementary codes that users can duplicate and use in their own work. - Takes an applied approach to material viscoelasticity, explaining complicated viscoelastic equations and principles - Presents examples of those equations and principles being applied to common problems in realworld settings - Covers constitutive viscoelastic functions, including relaxation modulus and creep compliance - Outlines the construction of a master curve of viscoelastic material considering time–temperature superposition - Couples the correspondence principle with common viscoelastic experiments, such as threepoint bending beam, axial and torsional bar, and dynamic shear rheometer - Provides supplementary codes




Viscoelasticity


Book Description

Viscoelasticity: Phenomenological Aspects provides information pertinent to the phenomenological aspects of viscoelasticity. This book provides the basic approach to the behavioral description of viscoelasticity. Organized into seven chapters, this book begins with an overview of the development of various theories of linear viscoelastic theories. This text then presents the results of investigation that evaluate the linear viscoelastic parameters of typical polymeric materials. Other chapters consider the development of nonlinear stress-strain-time relations for viscoelastic materials, which have been helpful in the analysis of the linear mechanical behavior of rubberlike polymers and the molecular theories. This book discusses as well the application of linear theories and the behavior of a number of polymer systems and their similarities and differences. The final chapter deals with experimental observations of real materials that exhibit nonlinear, time-dependent stress-strain behavior. This book is a valuable resource for chemists, mechanical engineers, and research workers.




A Practical Guide to Phacoemulsification


Book Description

Leading experts in this new field have developed a comprehensive and practical guide to Phacoemulsification. This procedure is now used in over 90 percent of cataract treatments in the USA. Covers both basic and advanced concepts and the latest developments. Beautifully illustrated throughout with full color text, diagrams and photographs.