Damping Properties of Viscoelastic Materials Under Biaxial Stress PDF Download
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Author: Ahid D. Nashif
Publisher:
ISBN:
Category : Damping (Mechanics)
Languages : en
Pages : 76
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Book Description
The damping characteristics of a temperature independent viscoelastic material are determined under axial, shear, and several combinations of both axial and shear loadings. A method for measuring these properties is devised by considering a double lap joint specimen and measuring the area of the hysteresis loops which resulted from the cyclic loading of the specimen under axial, shear, and several combinations of both axial and shear conditions. The complex elastic and shear moduli and Poisson's ratio are presented as a function of the strain amplitude. The experimental results of the damping properties under biaxial stresses are found to be in good agreement with the theoretical analysis. (Author).
Author: Ahid D. Nashif
Publisher:
ISBN:
Category : Damping (Mechanics)
Languages : en
Pages : 76
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Book Description
The damping characteristics of a temperature independent viscoelastic material are determined under axial, shear, and several combinations of both axial and shear loadings. A method for measuring these properties is devised by considering a double lap joint specimen and measuring the area of the hysteresis loops which resulted from the cyclic loading of the specimen under axial, shear, and several combinations of both axial and shear conditions. The complex elastic and shear moduli and Poisson's ratio are presented as a function of the strain amplitude. The experimental results of the damping properties under biaxial stresses are found to be in good agreement with the theoretical analysis. (Author).
Author: Ahid Darwish Nashif
Publisher:
ISBN:
Category : Strength of materials
Languages : en
Pages : 138
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Book Description
Author: Roderic S. Lakes
Publisher: CRC Press
ISBN: 1351355643
Category : Technology & Engineering
Languages : en
Pages : 476
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Book Description
Viscoelastic Solids covers the mathematical theory of viscoelasticity and physical insights, causal mechanisms, and practical applications. The book: presents a development of the theory, addressing both transient and dynamic aspects as well as emphasizing linear viscoelasticity synthesizes the structure of the theory with the aim of developing physical insight illustrates the methods for the solution of stress analysis problems in viscoelastic objects explores experimental methods for the characterization of viscoelastic materials describes the phenomenology of viscoelasticity in a variety of materials, including polymers, metals, high damping alloys, rock, piezoelectric materials, cellular solids, dense composite materials, and biological materials analyzes high damping and extremely low damping provides the theory of viscoelastic composite materials, including examples of various types of structure and the relationships between structure and mechanical properties contains examples on the use of viscoelastic materials in preventing and alleviating human suffering Viscoelastic Solids also demonstrates the use of viscoelasticity for diverse applications, such as earplugs, gaskets, computer disks, satellite stability, medical diagnosis, injury prevention, vibration abatement, tire performance, sports, spacecraft explosions, and music.
Author: Vincent Wester Anderson
Publisher:
ISBN:
Category : Damping (Mechanics)
Languages : en
Pages : 322
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Book Description
Author: Roderic S. Lakes
Publisher: Cambridge University Press
ISBN: 052188568X
Category : Science
Languages : en
Pages : 481
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Book Description
This graduate text on viscoelastic materials addresses design applications as diverse as earplugs, computer disks and medical diagnostics.
Author: Mohamed El-Amin
Publisher: BoD – Books on Demand
ISBN: 9535126024
Category : Science
Languages : en
Pages : 376
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Book Description
This book introduces numerous selected advanced topics in viscoelastic and viscoplastic materials. The book effectively blends theoretical, numerical, modeling and experimental aspects of viscoelastic and viscoplastic materials that are usually encountered in many research areas such as chemical, mechanical and petroleum engineering. The book consists of 14 chapters that can serve as an important reference for researchers and engineers working in the field of viscoelastic and viscoplastic materials.
Author: P. J. Torvik
Publisher:
ISBN:
Category : Damping (Mechanics)
Languages : en
Pages : 0
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Book Description
A new theory of combined stress damping is developed and evaluated on the basis of experimental results for several materials. It is concluded that the new theory should be limited in application to materials whose dominant damping mechanism is known to be plastic deformation. It appears that a separate theory of combined stress damping may be required for each mechanism of damping.
Author: William N. Findley
Publisher: Courier Corporation
ISBN: 0486145174
Category : Technology & Engineering
Languages : en
Pages : 402
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Book Description
This pioneering book presents the basic theory, experimental methods, experimental results and solution of boundary value problems in a readable, useful way to designers as well as research workers and students. The mathematical background required has been kept to a minimum and supplemented by explanations where it has been necessary to introduce specialized mathematics. Also, appendices have been included to provide sufficient background in Laplace transforms and in step functions. Chapters 1 and 2 contain an introduction and historic review of creep. As an aid to the reader a background on stress, strain, and stress analysis is provided in Chapters 3 and 4, an introduction to linear viscoelasticity is found in Chapter 5 and linear viscoelastic stress analysis in Chapter 6. In the next six chapters the multiple integral representation of nonlinear creep and relaxation, and simplifications to single integral forms and incompressibility, are examined at length. After a consideration of other representations, general relations are derived, then expanded to components of stress or strain for special cases. Both constant stress (or strain) and variable states are described, together with methods of determining material constants. Conversion from creep to relaxation, effects of temperature and stress analysis problems in nonlinear materials are also treated here. Finally, Chapter 13 discusses experimental methods for creep and stress relaxation under combined stress. This chapter considers especially those experimental problems which must be solved properly when reliable experimental results of high precision are required. Six appendices present the necessary mathematical background, conversion tables, and more rigorous derivations than employed in the text. An extensive updated bibliography completes the book.
Author: Benjamin Joseph Lazan
Publisher: Pergamon
ISBN:
Category : Science
Languages : en
Pages : 340
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Book Description
Author: Ahid D. Nashif
Publisher: John Wiley & Sons
ISBN: 9780471867722
Category : Technology & Engineering
Languages : en
Pages : 484
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Book Description
A practical approach to the application of viscoelastic damping materials to control vibration and noise problems in industrial structures, machinery, computer machinery, and vehicles. Assuming a basic understanding of mechanical engineering, the text covers implementation of theory, including material properties, dynamic structural response, design procedures and practical applications. Based on an understanding of both the properties of materials and the vibrational response of structures. Considers individual structures and the damping materials properties simultaneously. Includes extensive collection of data sheets for a large number of useful damping materials.
