Author: Lin Niu
Publisher:
ISBN:
Category :
Languages : en
Pages : 368

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Book Description

Author: Stanislav Rokhlin
Publisher: Oxford University Press
ISBN: 0199723427
Category : Technology & Engineering
Languages : en
Pages :

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Book Description
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.

Author: Stanislav Rokhlin
Publisher: Oxford University Press, USA
ISBN: 0195079604
Category : Language Arts & Disciplines
Languages : en
Pages : 401

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Book Description
The objective of this book is to treat the behavior of ultrasonic waves as they interact with layered, anisotropic materials incorporating those structural aspects unique to composite laminates addressing both experimental and modeling methodologies. Anisotropic material interfaces, guided waves, waves in layered media and laminated plates are treated. The influence of finite-aperture transducers on electronic signals and the field of air-coupled ultrasonics end the work.

Author: C. T. Sun
Publisher: CRC Press
ISBN: 0849315018
Category : Technology & Engineering
Languages : en
Pages : 1685

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Author: Robert A. Kline
Publisher: CRC Press
ISBN: 9780877629252
Category : Technology & Engineering
Languages : en
Pages : 204

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Book Description
A guide to NDE of composite materials by acoustic wave propagation, including advanced ultrasound methods, for detailed identification and measurement of defects, and characterization of microstructure and properties. "The major objective is to present the basic concepts of wave propagation in anisotropic media, and to show how these concepts can be applied to the quantitative, nondestructive evaluation of composite media."

Author: RobertA. Kline
Publisher: Routledge
ISBN: 1351428446
Category : Technology & Engineering
Languages : en
Pages : 204

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Book Description
A guide to NDE of composite materials by acoustic wave propagation, including advanced ultrasound methods, for detailed identification and measurement of defects, and characterization of microstructure and properties. ""The major objective is to present the basic concepts of wave propagation in anisotropic media, and to show how these concepts can be applied to the quantitative, nondestructive evaluation of composite media.

Author: Moises Levy
Publisher: Academic Press
ISBN: 0080924255
Category : Technology & Engineering
Languages : en
Pages : 2513

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Book Description
Sound waves propagate through galactic space, through two-dimensional solids, through biological systems, through normal and dense stars, and through everything that surrounds us; the earth, the sea, and the air. We use sound to locate objects, to identify objects, to understand processes going on in nature, to communicate, and to entertain. The elastic properties of materials determine the velocity of sound in them and tell us about their response to stresses something which is very important when we are trying to construct, manufacture, or create something with any material. The Handbook of Elastic Properties of Materials will provide these characteristics for almost everything whose elastic properties has ever been measured or deduced in a concise and approachable manner. Leading experts will explain the significance of the elastic properties as they relate to intrinsic microscopic behavior, to manufacturing, to construction, or to diagnosis. They will discuss the propagation of sound in newly discovered or created materials, and in common materials which are being investigated with a fresh outlook. The Handbook will provide the reader with the elastic properties of the common and mundane, the novel and unique, the immense and the microscopic, and the exhorbitantly dense and the ephemeral.. You will also find the measurement. And theoretical techniques that have been developed and invented in order to extract these properties from a reluctant nature and recalcitrant systems. Key Features * Solids, liquids and gases covered in one handbook * Articles by experts describing insights developed over long and Illustrious careers * Properties of esoteric substances, such as normal and dense stars, superfluid helium three, fullerness, two dimensional solids, extraterrestial substances, gems and planetary atmospheres * Properties of common materials such as food, wood used for musical instruments, paper, cement, and cork * Modern dynamic elastic properties measurement techniques

Author: Ignazio Crivelli Visconti
Publisher: Woodhead Publishing
ISBN: 9781855734074
Category : Technology & Engineering
Languages : en
Pages : 694

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Author:
Publisher:
ISBN:
Category : Aeronautics
Languages : en
Pages : 556

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Book Description

Author: Robert E. Green
Publisher: Springer Science & Business Media
ISBN: 1461525748
Category : Technology & Engineering
Languages : en
Pages : 822

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Book Description
Traditionally the vast majority of materials characterization techniques have been destructive, e. g. , chemical compositional analysis, metallographic determination of microstructure, tensile test measurement of mechanical properties, etc. Also, traditionally, nondestructive techniques have been used almost exclusively for the detection of macroscopic defects, mostly cracks, in structures and devices which have already been constructed and have already been in service for an extended period of time. Following these conventional nondestructive tests, it has been common practice to use somewhat arbitrary accept-reject criteria to decide whether or not the structure or device should be removed from service. The present unfavorable status of a large segment of industry, coupled with the desire to keep structures in service well past their original design life, dramatically show that our traditional approaches must be drastically modified if we are to be able to meet future needs. The role of nondestructive characterization of materials is changing and will continue to change dramatically. It has become increasingly evident that it is both practical and cost effective to expand the role of nondestructive evaluation to include all aspects of materials' production and application and to introduce it much earlier in the manufacturing cycle. In fact, the recovery of a large portion of industry from severe economic problems is dependent, in part, on the successful implementation of this expanded role.