Realistic design through advanced ultrasonic inspection
- KAPL, Inc., Schenectady, NY (United States)
Conventional ultrasonic testing (UT) bases flaw disposition primarily on reflected signal strength, rather than the presence of more definitive flaw features. Reflected signal strength can be influenced by such things as flaw orientation, composition and surface texture. Thus, estimating flaw size from amplitude alone can be difficult. In general, advanced quantitative flaw sizing techniques isolate flaw features and measure time-of-flight parameters to arrive at quantitative size estimates. Flaw sizing is complex, time intensive and requires precise measurements to achieve valid results. Due to the sophistication of flaw sizing, it is often not practical for production use in manufacturing applications. A UT technique that provides useful design data is being qualified using a known distribution of flaws and reflectors. The technique detects and screens flaws by qualitative size using production oriented techniques. The technique is capable of reliably isolating flaws larger than 0.060 inches through-wall dimension in weld deposited cladding. Use of this method can improve structural analysis assumptions, by providing the basis for more realistic pressure vessel cladding flaw assumptions, without compromising safety or performance.
- OSTI ID:
- 64666
- Report Number(s):
- CONF-931193-; ISBN 0-931403-23-5; TRN: IM9528%%326
- Resource Relation:
- Conference: American Society for Nondestructive Testing (ASNT) fall conference and quality testing show: NDT - a partner in engineering innovation, Long Beach, CA (United States), 8-12 Nov 1993; Other Information: PBD: 1993; Related Information: Is Part Of ASNT 1993 fall conference and quality testing show. NDT: A partner in engineering innovation; PB: 193 p.
- Country of Publication:
- United States
- Language:
- English
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