Optimization of thermographic NDT using finite element analysis
- Boeing Co., Seattle, WA (United States). Defense and Space Group
Experimental and analytical methods were used to study heating techniques for infrared thermography inspection of superplastic formed/diffusion bonded (SPF/DB) structural components. Various thermal loads were investigated to determine the parameters required for highest flaw detection sensitivity. Finite element analysis was used to determine optimal heating techniques. According to the analysis, short burst, high intensity heating on the inspection side of the part is required for the highest flaw detection sensitivity. The analytical results were verified using an infrared camera and heat lamps to detect unbonds in four-sheet SPF/DB panels. Good quantitative agreement between the analysis and laboratory experiments was obtained.
- OSTI ID:
- 220703
- Report Number(s):
- CONF-940449-; ISBN 0-8194-1549-9; TRN: IM9620%%97
- Resource Relation:
- Conference: Society of Photo-Optical Instrumentation Engineers conference on intelligent information systems, Orlando, FL (United States), 4-8 Apr 1994; Other Information: PBD: 1994; Related Information: Is Part Of Thermosense 16: An international conference on thermal sensing and imaging diagnostic applications; Snell, J.R. Jr. [ed.]; PB: 330 p.; Proceedings/SPIE, Volume 2245
- Country of Publication:
- United States
- Language:
- English
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