Описание: Ultrasonic signals are increasingly being used for predicting material behavior, both in an engineering context (detecting anomalies in a variety of structures) and a biological context (examining human bones, body parts and unborn fetuses).
Автор: Joseph L. Rose Название: Ultrasonic Waves in Solid Media ISBN: 0521548896 ISBN-13(EAN): 9780521548892 Издательство: Cambridge Academ Рейтинг: Цена: 9029.00 р. Наличие на складе: Есть у поставщика Поставка под заказ.
Описание: Explains the physical principles of wave propagation and relates them to ultrasonic wave mechanics and the more recent guided wave techniques that are used to inspect and evaluate aircraft, power plants, and pipelines in chemical processing. An invaluable reference to this active field for graduate students, researchers, and practising engineers.
Описание: EMATs for Science and Industry comprises the physical principles of electromagnetic acoustic transducers (EMATs) and the applications to scientific and industrial ultrasonic measurements on materials. The text is arranged in four parts: -PART I is intended to be a self-contained description of the basic elements of coupling mechanism along with practical designing of EMATs for various purposes. There are several implementations to compensate for the low transfer efficiency of the EMATs. Useful tips to make an EMAT are also presented. -PART II describes the principle of electromagnetic acoustic resonance (EMAR), which makes the most of contactless nature of EMATs and is the most successful amplification mechanism for precise velocity and attenuation measurements. -PART III applies EMAR to studying the physical acoustics. New measurements emerged on three major subjects; in situ monitoring of dislocation behavior, determination of anisotropic elastic constants, and acoustic nonlinearity evolution. -PART IV deals with a variety of individual topics encountered in industrial applications, for which the EMATs are believed to the best solutions.The authors' work in this area has shown Electromagnetic acoustic resonance (EMAR) to be applicable not only to the acoustoelastic stress measurements, but also to many other nondestructive evaluation issues, including the determination of attenuation in solids. Noncontact measurement with high enough signal intensity was striking. Basic preconditions of theoretical approaches were realized by eliminating artifacts caused by the contact transducers. EMAR thus illuminated antiquated theories, which were accepted to be of little use or limited to qualitative interpretation of observations. It also uncovered interesting phenomena. Continuous monitoring of attenuation and acoustic nonlinearity resulted in the detection of ongoing microstructure evolutions in deforming or fatiguing metals.The aim of this book is to provide practical answers to the needs of ultrasonic measurements as well as an understanding of a novel methodology.
Автор: Chimenti, Dale; Rokhlin, Stanislav; Nagy, Peter Название: Physical Ultrasonics of Composites ISBN: 0195079604 ISBN-13(EAN): 9780195079609 Издательство: Oxford Academ Рейтинг: Цена: 17028.00 р. Наличие на складе: Есть у поставщика Поставка под заказ.
Описание: Physical Ultrasonics of Composites is a rigorous introduction to the characterization of composite materials by means of ultrasonic waves. Composites are treated here not simply as uniform media, but as inhomogeneous layered anisotropic media with internal structure characteristic of composite laminates. The objective here is to concentrate on exposing the singular behavior of ultrasonic waves as they interact with layered, anisotropic materials, materials which incorporate those structural elements typical of composite laminates. This book provides a synergistic description of both modeling and experimental methods in addressing wave propagation phenomena and composite property measurements. After a brief review of basic composite mechanics, a thorough treatment of ultrasonics in anisotropic media is presented, along with composite characterization methods. The interaction of ultrasonic waves at interfaces of anisotropic materials is discussed, as are guided waves in composite plates and rods. Waves in layered media are developed from the standpoint of the Stiffness Matrix, a major advance over the conventional, potentially unstable Transfer Matrix approach. Laminated plates are treated both with the stiffness matrix and using Floquet analysis. The important influence on the received electronic signals in ultrasonic materials characterization from transducer geometry and placement are carefully exposed in a dedicated chapter. Ultrasonic wave interactions are especially susceptible to such influences because ultrasonic transducers are seldom more than a dozen or so wavelengths in diameter. The book ends with a chapter devoted to the emerging field of air-coupled ultrasonics. This new technology has come of age with the development of purpose-built transducers and electronics and is finding ever wider applications, particularly in the characterization of composite laminates.
Автор: Alain Leger; Marc Deschamps Название: Ultrasonic Wave Propagation in Non Homogeneous Media ISBN: 3642100341 ISBN-13(EAN): 9783642100345 Издательство: Springer Рейтинг: Цена: 36570.00 р. Наличие на складе: Есть у поставщика Поставка под заказ.
Описание: Covers an important field of applications and requires a wide range of fundamental theoretical, numerical and experimental investigations. This title includes relevant research results on wave propagation in complex materials and structures which are concerned with today`s problems on composites, bonding, guided waves, contact or damage.
Автор: Ashokkumar, Muthupandian Название: Ultrasonic Synthesis of Functional Materials ISBN: 3319289721 ISBN-13(EAN): 9783319289724 Издательство: Springer Рейтинг: Цена: 7182.00 р. Наличие на складе: Есть у поставщика Поставка под заказ.
Описание: Introduction.- Ultrasonic Synthesis of Functional Materials.- Advantages, Disadvantages and Challenges of Ultrasonic Technology.
Автор: Cheeke, J. David N. Название: Fundamentals and applications of ultrasonic waves ISBN: 0849301300 ISBN-13(EAN): 9780849301308 Издательство: Taylor&Francis Рейтинг: Цена: 14087.00 р. Наличие на складе: Поставка под заказ.
Описание: Suitable for senior undergraduates, beginning graduate students, and those just entering the field of ultrasonics, this book offers a treatment of ultrasonic waves in isotropic media. It focuses on the physics of acoustic waves, their propagation, and the different modes that can be excited in various geometries.
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