Journal ArticleDOI
A Baseline and Vision of Ultrasonic Guided Wave Inspection Potential
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TLDR
In this article, the authors provide a vision of ultrasonic guided wave inspection potential as we move forward into the new millennium and provide a brief description of the sensor and software technology that will make ultrasonic guidance wave inspection commonplace in the next century.Abstract:
Ultrasonic guided wave inspection is expanding rapidly to many different areas of manufacturing and in-service inspection. The purpose of this paper is to provide a vision of ultrasonic guided wave inspection potential aswe move forward into the new millennium. An increased understanding of the basic physics and wave mechanics associated with guided wave inspection has led to an increase in practical nondestructive evaluation and inspection problems. Some fundamental concepts and a number of different applications that are currently being considered will be presented in the paper along with a brief description of the sensor and software technology that will make ultrasonic guided wave inspection commonplace in the next century.read more
Citations
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Proceedings ArticleDOI
Modal expansion analyses of second-harmonic generation of Lamb modes in layered planar structures
TL;DR: In this article, the authors developed an effective approach for studying the generation of second harmonics of the Lamb modes (LMs) in layered planar structures, where second-order bulk and surface/interface driving sources were considered as forcing functions of a series of double frequency Lamb modes.
Proceedings ArticleDOI
Development of a miniature foil type ultrasonic motor
Jun Okamoto,Shigeki Toyama +1 more
TL;DR: The result showed that the foil type motor driving principal was different from that of the general ultrasonic motor which was driven by elliptical motion of the elastic body surface, the main driving force was the generated symmetric lamb wave which rotates the coil surface forward direction.
Journal ArticleDOI
Fundamental guided wave attenuations and sensor location estimation in fluid-filled steel pipes
TL;DR: In this article, the sound intensities required to sustain a certain interval between two ultrasonic sensors that are installed outside a steep pipe for structural health monitoring are numerically investigated, and two fundamental guided wave modes, longitudinal and flexural, are considered for the calculation of their attenuations via the concept of parametric density and a sink inside steel pipes, and these attenuations are used for the sound intensity calculations.
Journal ArticleDOI
Measurement of wave structures of non-dispersive guided waves in opaque media
The propagation characteristics of laser-generated guided wave in carbon steel plate with wall-thinning
TL;DR: In this paper, the authors used a Nd:YAG pulse laser and an air-coupled transducer to evaluate carbon steel plate with wall-thinning by using guided waves.
References
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Book
Acoustic Fields and Waves in Solids
TL;DR: In this article, the authors apply the material developed in the Volume One to various boundary value problems (reflection and refraction at plane surfaces, composite media, waveguides and resonators).
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Wave propagation in elastic solids
TL;DR: In this article, the linearized theory of elasticity was introduced and the elasticity of a one-dimensional motion of an elastic continuum was modeled as an unbound elastic continuum.
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Wave Motion in Elastic Solids
TL;DR: In this article, a comprehensive study of elastic wave propagation in solids is presented, ranging from the theory of waves and vibrations in strings to the three-dimensional theory of elastic waves in thick plates.
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Ultrasonic Waves in Solid Media
TL;DR: In this article, the theory of elasticity was introduced and basic formulas and concepts in complex variables in the theory and application of wave propagation were discussed. But the authors did not consider the effects of wave scattering on the wave propagation experiments.