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- W213088689 abstract "This report describes the development and application of ray tracing to the problem of stainless steel cladding on a ferritic steel plate. Such materials are commonly found in components of nuclear power plants. An important goal of the work is to image a crack emanating perpendicular to the interface and to calculate a synthetic A-scan typical of pitch-catch or pulse-echo ultrasonic inspection methods. Ray methods are attractive for rapidly gaining insight into ultrasonic inspection of complex parts because, like finite elements, they are capable of imaging obstacles in the ray path but are less computationally intensive. In the present project, we extend our existing ray code RAYT3D, which we previously applied primarily in geophysics, to transversely isotropic materials such as cladding. There are three goals for this effort. First to document the ray method 3-D formulation for transversely isotropic materials, including all of the ingredients necessary to generate synthetic A-scans from a postulated model. Second, to expand awareness of the advantages of a two-point formulation wherein the ray tracing problem is formulated as a two-point boundary value problem rather than as an initial value or shooting problems as is more commonly encountered. The two-point formulation has a number of advantages,more » including efficiency, stability, and suitability for use in an inversion loop. Inversion is one possible long-term goal of this work. Finally, we solve a few representative examples, with the hope that readers will recognize a tool which could solve some problems of immediate interest to the NDE community, and direct our attention to those problems. 14 refs., 12 figs., 6 tabs.« less" @default.
- W213088689 created "2016-06-24" @default.
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- W213088689 date "1990-11-01" @default.
- W213088689 modified "2023-09-27" @default.
- W213088689 title "Ultrasonic wave propagation in reactor pressure vessel cladded interfaces. [Stainless Steel Cladding/Ferritic Steel Plate Interface]" @default.
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