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1996 | OriginalPaper | Buchkapitel

Precise Thermal NDE for Quantifying Structural Damage

verfasst von : Nancy K. Del Grande, Philip F. Durbin

Erschienen in: Review of Progress in Quantitative Nondestructive Evaluation

Verlag: Springer US

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We have developed precise thermal NDE as a wide-area inspection tool to quantify structural damage within airframes and bridge decks. We used infrared cameras and image processing to produce precise temperature, thermal inertia, and cooling-rate maps of flash-heated aircraft skins. These maps allowed us to distinguish major structural defects from minor flaws which do not warrant costly repairs. We quantified aircraft skin corrosion defects with metal losses as low as 5% with 3% overall uncertainty [1–6]. We proved the feasibility of precise thermal NDE to inspect naturally-heated asphalt-concrete bridge decks. To this end, we quantified structural damage within asphalt-concrete slabs by locating the sites, and determining the relative volumes, of concrete displacements from 2-inch deep and 4-inch deep synthetic delaminations in asphalt-concrete slabs [4–8].

Metadaten
Titel
Precise Thermal NDE for Quantifying Structural Damage
verfasst von
Nancy K. Del Grande
Philip F. Durbin
Copyright-Jahr
1996
Verlag
Springer US
DOI
https://doi.org/10.1007/978-1-4613-0383-1_67

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