Titlebook: Handbook of Advanced Nondestructive Evaluation; Nathan Ida,Norbert Meyendorf Reference work 2019 Springer Nature Switzerland AG 2019 Emerg

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Managing the Process of EngineeringThis rather old test utilizes the effect that a defect (such as a large void, crack, or delamination), that is invisible from the surface, causes a change of acoustic waves emitted from the structure as a person taps on it – e.g., using a coin or a small hammer. This procedure has obvious drawbacks

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Tom J. Mabry,K. R. Markham,M. B. Thomasse echo measurements with a single transducer and more advanced material examination using phased arrays allow for the detection of cracks and cavities in homogeneous materials. However, some types of damage remain invisible to traditional ultrasound nondestructive testing (NDT). Early stage fatigue

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Bernard Manger,John Imboden,Arthur Weisslectronics (new light sources and detectors), fiber optics, modern mechanical, and electronic hardware components as well as in computer engineering and informatics aids continuous development of automated, compact, full-field, non-contact, high-speed, and high-accuracy measurement systems. This cha

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Gérard M. Stampfli,Gilles D. Borel objects. In this chapter, the theoretical background of two beam interference is first given. This section highlights the basics of interference, its dependence on temporal and spatial coherence of the source, and how coherence is used in different types of measurement. Next, the basics of fringe f

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Physical Basis for Ultrasonic Acousticsthe description and presentation of the wave propagation problem, which can become quite complicated in some cases. The chapter starts with discussion of the wave propagation equation in an infinite elastic medium. The general equations of 3-D wave propagation in unbounded solid media are developed