Program for field validation of the Synthetic Aperture Focusing Technique for Ultrasonic Testing (SAFT UT). Analysis before test
The purpose of this project is to continue the development of the Synthetic Aperture Focusing Technique (SAFT) for Ultrasonic Testing (UT) that was originated at the University of Michigan. This method will be implemented in the form of a system suitable for use during site examinations of actual nuclear power reactor pressure vessels and components (RPVC). An extensive test program will be conducted to determine the capability of the system to accurately characterize flaws in specimens that represent RPVC. SwRI will blend the results of the University of Michigan research with its own experience in the application of Mechanized UT Systems to RPVC, and use the combined knowledge to produce a field-rated examination system employing the new technique. After construction and initial checkout, the examination system will then enter into an extensive test program. The first phase, termed System Development Test, will be conducted in the laboratory using specimens containing artificial flaws. This phase will be designed to verify predicted resolution abilities, evaluate the effects of various operating parameters, and provide operating personnel with an opportunity to gain experience in the application of the examination system and in interpretation of its results. The objective of the Examination Reliability and Confidence Level Test phase is to assess the reliability and confidence level of the examination system for characterizing flaws in specimens that accurately simulate actual RPVC structures. These specimens will contain both fabrication and artificial, service-induced flaws. These specimens will be subjected to destructive evaluation to determine the true nature and size of the flaw. A detailed description of the system design specifications, as well as a more complete description of the test program, are contained in this outline.
- Research Organization:
- Southwest Research Inst., San Antonio, TX (USA)
- OSTI ID:
- 6639076
- Report Number(s):
- NUREG/CR-0288; TRN: 78-019688
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
42 ENGINEERING
POWER REACTORS
PRESSURE VESSELS
REACTOR COMPONENTS
ULTRASONIC TESTING
RESEARCH PROGRAMS
ACOUSTIC TESTING
CONTAINERS
MATERIALS TESTING
NONDESTRUCTIVE TESTING
REACTORS
TESTING
220200* - Nuclear Reactor Technology- Components & Accessories
420500 - Engineering- Materials Testing