Titlebook: Review of Progress in Quantitative Nondestructive Evaluation; Volume 11A Donald O. Thompson,Dale E. Chimenti Book 1992 Plenum Press, New Yo

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Scattering of Acoustic and Elastic Waves by Cracklike Objects: The Role of Hypersingular Integralse of a solid, or as touching surfaces with zero enclosed volume, i.e. a ‘mathematical’ crack (see Fig. 1). Any of these models, among others, may be employed depending on a variety of factors. Although the models with nonzero enclosed volume usually represent reality better, the ‘mathematical’ model

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Bie Analysis of Elastic Wave Scattering by a Nonlinear Interfacenical properties of interfaces quantitatively by using an ultrasonic technique, it is necessary to make sure how elastic waves are scattered by interfaces. There are, however, many possibilities for mechanical properties of interfaces. One of the most important and interesting behaviors may be nonli

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Elastodynamic Scattering from a Three-Dimensional Crack in a Fluid-Loaded Halfspace-dimensional isotropic elastic halfspace, which is homogeneous except for the presence of a finite flat crack. The crack breaks the surface of the halfspace, and in the current formulation is taken to be orientated normal to the halfspace surface.

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Transient Scattering of Rayleigh-Lamb Waves by Surface-Breaking and Buried Cracks in a Platetive evaluation (QNDE) techniques provide the means to detect a flaw and to determine its location, size, shape and orientation. Ultrasonic technique is one of such commonly used ones. Comprehensive discussions of ultrasonic QNDE methods can be found in recent review papers by Thompson and Thompson

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Theoretical Predictions and Experimental Measurements of Echo-Responses from Angled Targets reviewed then used to predict echo-responses from angled planar targets, these results being compared with experimental measurements. This comparison allows the definition of its domain of applicability. Implications for QNDE are discussed. Particular attention is given to the physical interpretati

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Ultrasonic Scattering from Anisotropic Shellsl materials. The interior, or core of the grain, and the surrounding host material are modelled as isotropic elastic solids, while the grain boundary itself is modelled as an anisotropic shell. Properties of the shell are thought of as being isotropic in any tangential direction, but different in th