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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Journal ArticleDOI
Ultrasonic characterization of tubing pinch welds
TL;DR: In this article, the authors used the Stanke-Kino theory of ultrasonic attenuation due to grain scattering to relate the microstructural changes caused by the pinch-weld process to the observed ultrasonic signals.
Journal ArticleDOI
S0 Lamb mode scattering studies in laminated composite plate structures with surface breaking cracks; insights into crack opening behavior.
Saurabh Gupta,Prabhu Rajagopal +1 more
TL;DR: In this paper , the effect of crack depth on S0 wave reflection behavior was investigated. And the S0 Lamb mode's sensitivity was numerically presented for the different crack depths in the long wavelength limit.
Journal ArticleDOI
Numerical analysis of a one-dimensional nonlinear wave scattering at a contact interface with damageable adhesion and unilateral contact
TL;DR: In this paper , the nonlinear scattering of a longitudinal harmonic plane wave induced by a contact interface is investigated numerically, using a model that combines damageable adhesion and unilateral contact.
Journal ArticleDOI
A multi-emitter ultrasonic flatness detecting device
TL;DR: In this paper, the authors used an ultrasonic array to generate strong ultrasound, the sound waves are reflected on the surface of the object and act on the polystyrene beads.
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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