Journal ArticleDOI
Ultrasonic scattering from imperfect interfaces: A quasi-static model
Jai-Man Baik,R. Bruce Thompson +1 more
TLDR
In this article, a quasi-static model for ultrasonic transmission and reflection at imperfect interfaces is developed, where the interface is represented by a distributed spring determined by the change in static compliance of the medium with respect to one with a perfect interface, and a distributed mass, representing excess mass at the interface.Abstract:
A quasi-static model for the ultrasonic transmission and reflection at imperfect interfaces is developed. The interface is represented by a distributed spring, determined by the change in static compliance of the medium with respect to one with a perfect interface, and a distributed mass, representing excess mass at the interface. Comparison of the model predictions to exact solutions for two simple cases illustrates its accuracy at low frequencies. The spring stiffnesses can be derived from existing solutions for the elastic displacement of materials containing cracks and inclusions under static load. Results for a variety of cases are reviewed. Applications of the model to study the characteristics of partially contacting surfaces in several problem areas of current interest are discussed.read more
Citations
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Proceedings ArticleDOI
Laboratory estimation of fracture compliance of a fluid-filled fracture using AVO response of a nonwelded interface
Shohei Minato,Ranajit Ghose +1 more
TL;DR: In this article, the authors explore the potential of multi-angle AVO inversion of P-P and P-S reflections from a fracture to estimate fracture proper-ties.
Journal ArticleDOI
Change in the waveform of broadband ultrasound reflected back from a sample via a polymer film
Hironori Tohmyoh,Shota Mukaimine +1 more
TL;DR: In this paper, a theoretical model to predict the reflected waveform obtained from the sample via the film was developed and the validity of the model was verified by experiments in which the ultrasound was transmitted from water into steel samples via a polymer film.
DissertationDOI
Ultrasonic scattering from decorated grain boundaries
TL;DR: In this paper, a review of literature on MICROSTRUCTURAL is presented, focusing on the foundations in acoustic wave scattering, including elastic properties of solids, Rayleigh scattering in polycrystals, effective medium theory, and backscatter from suspensions of particles.
Book ChapterDOI
Measurement of a Sandwich Bond Strength
TL;DR: In this paper, the authors used non-destructive measurements of the surface preparation of the adherend of a solid-solid bond to measure interfacial properties of the bond and applied them to the NDE test.
Journal ArticleDOI
Linear and nonlinear normal interface stiffness in dry rough surface contact measured using longitudinal ultrasonic waves
Saeid Taghizadeh,Rob Dwyer-Joyce +1 more
TL;DR: In this article, a reflection method was used to measure the interfacial stiffness of the rough surface interface of a distributed spring and the results were compared to existing experimental work with through transmission.
References
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Book
Theory of elasticity
TL;DR: The theory of the slipline field is used in this article to solve the problem of stable and non-stressed problems in plane strains in a plane-strain scenario.
Book
The stress analysis of cracks handbook
TL;DR: The Stress Analysis of Cracks Handbook as mentioned in this paper provides a comprehensive, easy-to-access collection of elastic stress solutions for crack configurations, along with other relevant information, such as displacements, crack opening areas, basic stress functions source references, accuracy of solutions, and more.
Book
Micromechanics of defects in solids
Toshio Mura,D. M. Barnett +1 more
TL;DR: In this paper, the authors present numerical simulation of intergranular and transgranular crack propagation in ferroelectric polycrystals using double kink mechanisms for discrete dislocations in BCCs.
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